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Wedderburn CJ, Evans C, Slogrove AL, Rehman AM, Gibb DM, Prendergast AJ, Penazzato M. Co-trimoxazole prophylaxis for children who are HIV-exposed and uninfected: a systematic review. J Int AIDS Soc 2023; 26:e26079. [PMID: 37292018 PMCID: PMC10251133 DOI: 10.1002/jia2.26079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 03/08/2023] [Indexed: 06/10/2023] Open
Abstract
INTRODUCTION Co-trimoxazole prophylaxis is recommended for children born to women with HIV to protect those who acquire HIV from opportunistic infections, severe bacterial infections and malaria. With scale-up of maternal antiretroviral therapy, most children remain HIV-exposed uninfected (HEU) and the benefits of universal co-trimoxazole are uncertain. We assessed the effect of co-trimoxazole on mortality and morbidity of children who are HEU. METHODS We performed a systematic review (PROSPERO number: CRD42021215059). We systematically searched MEDLINE, Embase, Cochrane CENTRAL, Global Health, CINAHL Plus, Africa-Wide Information, SciELO and WHO Global Index Medicus for peer-reviewed articles from inception to 4th January 2022 without limits. Ongoing randomized controlled trials (RCTs) were identified through registries. We included RCTs reporting mortality or morbidity in children who are HEU receiving co-trimoxazole versus no prophylaxis/placebo. The risk of bias was assessed using the Cochrane 2.0 tool. Data were summarized using narrative synthesis and findings were stratified by malaria endemicity. RESULTS We screened 1257 records and included seven reports from four RCTs. Two trials from Botswana and South Africa of 4067 children who are HEU found no difference in mortality or infectious morbidity in children randomized to co-trimoxazole prophylaxis started at 2-6 weeks of age compared to those randomized to placebo or no treatment, although event rates were low. Sub-studies found that antimicrobial resistance was higher in infants receiving co-trimoxazole. Two trials in Uganda investigating prolonged co-trimoxazole after breastfeeding cessation showed protection against malaria but no other morbidity or mortality differences. All trials had some concerns or a high risk of bias, which limited the certainty of evidence. DISCUSSION Studies show no clinical benefit of co-trimoxazole prophylaxis in children who are HEU, except to prevent malaria. Potential harms were identified for co-trimoxazole prophylaxis leading to antimicrobial resistance. The trials in non-malarial regions were conducted in populations with low mortality potentially reducing generalizability to other settings. CONCLUSIONS In low-mortality settings with few HIV transmissions and well-performing early infant diagnosis and treatment programmes, universal co-trimoxazole may not be required.
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Affiliation(s)
- Catherine J. Wedderburn
- Department of Paediatrics and Child Health and Neuroscience InstituteUniversity of Cape TownCape TownSouth Africa
- Medical Research Council Clinical Trials Unit at University College LondonLondonUK
- Department of Clinical ResearchLondon School of Hygiene & Tropical MedicineLondonUK
| | - Ceri Evans
- Blizard InstituteQueen Mary University of LondonLondonUK
- Zvitambo Institute for Maternal and Child Health ResearchHarareZimbabwe
- Department of Clinical InfectionMicrobiology and ImmunologyUniversity of LiverpoolLiverpoolUK
| | - Amy L. Slogrove
- Department of Paediatrics and Child HealthFaculty of Medicine & Health SciencesStellenbosch UniversityWorcesterSouth Africa
| | - Andrea M. Rehman
- MRC International Statistics & Epidemiology GroupDepartment of Infectious Disease EpidemiologyLondon School of Hygiene & Tropical MedicineLondonUK
| | - Diana M. Gibb
- Medical Research Council Clinical Trials Unit at University College LondonLondonUK
| | - Andrew J. Prendergast
- Blizard InstituteQueen Mary University of LondonLondonUK
- Zvitambo Institute for Maternal and Child Health ResearchHarareZimbabwe
| | - Martina Penazzato
- Department of Global HIVHepatitis and Sexually Transmitted Infections ProgrammesWorld Health OrganizationGenevaSwitzerland
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Floridia M, Orlando S, Andreotti M, Mphwere R, Kavalo T, Ciccacci F, Scarcella P, Marazzi MC, Giuliano M. A 12-month Prospective Study of HIV-infected and HIV-uninfected Women and Their Infants in Malawi: Comparative Analysis of Clinical Events and Infant Growth. Am J Trop Med Hyg 2023; 108:394-402. [PMID: 36535249 PMCID: PMC9896343 DOI: 10.4269/ajtmh.22-0482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/16/2022] [Indexed: 12/23/2022] Open
Abstract
Few studies have compared clinical outcomes in HIV-exposed uninfected (HEU) and HIV-unexposed uninfected (HUU) infants in the current scenario of universal and lifelong maternal antiretroviral therapy (ART). HIV-uninfected and HIV-infected Malawian women receiving ART and their breastfed infants were followed for 12 months postpartum, analyzing the rates of infectious and noninfectious events and assessing infant growth at 6 weeks, 6 months, and 12 months. The cohorts included 227 mothers (70 HIV-negative, 157 HIV-positive) and 235 infants (72 HUU, 163 HEU). No maternal or infant deaths occurred during follow-up. HIV-negative women were less likely to complete follow-up (48.6% versus 91.1%). Mothers with and without HIV had similar rates of both infectious and noninfectious events per person-month. Infants who were HEU, compared with HUU, had higher rates of events of any type, lower respiratory tract infections (LRTI), and noninfectious events. HEU had lower body mass index (BMI) at 6 weeks but did not differ from HUU in all anthropometric measures at 6 and 12 months; in growth between 6 weeks and 12 months; and in occurrence of stunting, underweight, and wasting at 6 weeks, 6 months, and 12 months. During the first year of life, infants who were HEU, compared with HUU, showed a transiently lower BMI and an increased risk of LRTI.
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Affiliation(s)
- Marco Floridia
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
| | - Stefano Orlando
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Mauro Andreotti
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
| | | | - Thom Kavalo
- DREAM Program, Community of S. Egidio, Blantyre, Malawi
| | - Fausto Ciccacci
- Saint Camillus International University of Health Sciences, Rome, Italy
| | - Paola Scarcella
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Marina Giuliano
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
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Evolution of the Gut Microbiome in HIV-Exposed Uninfected and Unexposed Infants during the First Year of Life. mBio 2022; 13:e0122922. [PMID: 36073815 PMCID: PMC9600264 DOI: 10.1128/mbio.01229-22] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
HIV-exposed uninfected infants (HEU) have abnormal immunologic functions and increased infectious morbidity in the first 6 months of life, which gradually decreases thereafter. The mechanisms underlying HEU immune dysfunctions are unknown. We hypothesized that unique characteristics of the HEU gut microbiota associated with maternal HIV status may underlie the HEU immunologic dysfunctions. We characterized the infant gut, maternal gut, and breast milk microbiomes of mother-infant pairs, including 123 with HEU and 117 with HIV-uninfected infants (HUU), from South Africa. Pan-bacterial 16S rRNA gene sequencing was performed on (i) infant stool at 6, 28, and 62 weeks; (ii) maternal stool at delivery and 62 weeks; and (iii) breast milk at 6 weeks. Infant gut alpha and beta diversities were similar between groups. Microbial composition significantly differed, including 12 genera, 5 families and 1 phylum at 6 weeks; 12 genera and 2 families at 28 weeks; and 2 genera and 2 families at 62 weeks of life. Maternal gut microbiomes significantly differed in beta diversity and microbial composition, and breast milk microbiomes differed in microbial composition only. Infant gut microbiotas extensively overlapped with maternal gut and minimally with breast milk microbiotas. Nevertheless, exclusively breastfed HEU and HUU had less divergent microbiomes than nonexclusively breastfed infants. Feeding pattern and maternal gut microbiome imprint the HEU gut microbiome. Compared to HUU, the HEU gut microbiome prominently differs in early infancy, including increased abundance of taxa previously observed to be present in excess in adults with HIV. The HEU and HUU gut microbiome compositions converge over time, mirroring the kinetics of HEU infectious morbidity risk.
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Jalbert E, Ghosh T, Smith C, Amaral FR, Mussi-Pinhata MM, Weinberg A. Impaired functionality of antigen presenting cells in HIV- exposed uninfected infants in the first six months of life. Front Immunol 2022; 13:960313. [PMID: 36032106 PMCID: PMC9411519 DOI: 10.3389/fimmu.2022.960313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
HIV-exposed uninfected infants (HEU) have increased morbidity and mortality due to infections in the first 6 months of life that tapers down to 2 years of life. The underlying immunologic defects remain undefined. We investigated antigen-presenting cells (APC) by comparing the phenotype of unstimulated APC, responses to toll-like receptor (TLR) stimulation, and ability to activate natural killer (NK) cells in 24 HEU and 64 HIV-unexposed infants (HUU) at 1-2 days of life (birth) and 28 HEU and 45 HUU at 6 months of life. At birth, unstimulated APC showed higher levels of activation and cytokine production in HEU than HUU and stimulation with TLR agonists revealed lower expression of inflammatory cytokines and activation markers, but similar expression of IL10 regulatory cytokine, in APC from HEU compared to HUU. Differences were still present at 6 months of life. From birth to 6 months, APC underwent extensive phenotypic and functional changes in HUU and minimal changes in HEU. TLR stimulation also generated lower NK cell expression of CD69 and/or IFNγ in HEU compared with HUU at birth and 6 months. In vitro experiments showed that NK IFNγ expression depended on APC cytokine secretion in response to TLR stimulation. Ex vivo IL10 supplementation decreased APC-mediated NK cell activation measured by IFNγ expression. We conclude that APC maturation was stunted or delayed in the first 6 months of life in HEU compared with HUU. Deficient inflammatory APC responses and/or the imbalance between inflammatory and regulatory responses in HEU may play an important role in their increased susceptibility to severe infections.
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Affiliation(s)
- Emilie Jalbert
- Department of Pediatrics, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO, United States
| | - Tusharkanti Ghosh
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO, United States
| | - Christiana Smith
- Department of Pediatrics, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO, United States
| | - Fabiana R. Amaral
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marisa M. Mussi-Pinhata
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Adriana Weinberg
- Department of Pediatrics, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO, United States
- Department of Medicine and Pathology, University of Colorado-Denver Anschutz Medical Campus, Aurora, CO, United States
- *Correspondence: Adriana Weinberg,
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Mussa A, Powis KM, Lockman S, Ajibola G, Morroni C, Smeaton L, Mmalane M, Makhema J, Shapiro RL. Prolonged Cotrimoxazole Prophylaxis Has No Impact on Child Growth in the First Two Years of Life: Findings from a Randomized Controlled Trial in Botswana. J Pediatr 2022; 246:266-270.e2. [PMID: 35351531 PMCID: PMC9233016 DOI: 10.1016/j.jpeds.2022.03.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 03/07/2022] [Accepted: 03/23/2022] [Indexed: 11/30/2022]
Abstract
We investigated the impact of prolonged cotrimoxazole prophylaxis on growth in 2848 HIV-exposed uninfected children enrolled in the Mpepu study, a randomized, placebo-controlled trial in Botswana. No significant differences in mean weight-for-age, length-for-age, or weight-for-length z scores between placebo and cotrimoxazole arms were observed overall through 18 months.
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Affiliation(s)
- Aamirah Mussa
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana.
| | - Kathleen M. Powis
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana;,Division of Internal Medicine, Massachusetts General Hospital, Boston, MA;,Division of Pediatrics, Massachusetts General Hospital, Boston, MA;,Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Shahin Lockman
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana;,Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA;,Division of Infectious Diseases, Brigham and Women’s Hospital, Boston, MA
| | | | - Chelsea Morroni
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana;,MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Laura Smeaton
- Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Mompati Mmalane
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Joseph Makhema
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Roger L. Shapiro
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana;,Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA
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Grant-Beurmann S, Jumare J, Ndembi N, Matthew O, Shutt A, Omoigberale A, Martin OA, Fraser CM, Charurat M. Dynamics of the infant gut microbiota in the first 18 months of life: the impact of maternal HIV infection and breastfeeding. MICROBIOME 2022; 10:61. [PMID: 35414043 PMCID: PMC9004197 DOI: 10.1186/s40168-022-01230-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Access to antiretroviral therapy (ART) during pregnancy and breastfeeding for mothers with HIV has resulted in fewer children acquiring HIV peri- and postnatally, resulting in an increase in the number of children who are exposed to the virus but are not infected (HEU). HEU infants have an increased likelihood of childhood infections and adverse growth outcomes, as well as increased mortality compared to their HIV-unexposed (HUU) peers. We explored potential differences in the gut microbiota in a cohort of 272 Nigerian infants born to HIV-positive and negative mothers in this study during the first 18 months of life. RESULTS The taxonomic composition of the maternal vaginal and gut microbiota showed no significant differences based on HIV status, and the composition of the infant gut microbiota at birth was similar between HUU and HEU. Longitudinal taxonomic composition of the infant gut microbiota and weight-for-age z-scores (WAZ) differed depending on access to breast milk. HEU infants displayed overall lower WAZ than HUU infants at all time points. We observed a significantly lower relative abundance of Bifidobacterium in HEU infants at 6 months postpartum. Breast milk composition also differed by time point and HIV infection status. The antiretroviral therapy drugs, lamivudine and nevirapine, as well as kynurenine, were significantly more abundant in the breast milk of mothers with HIV. Levels of tiglyl carnitine (C5) were significantly lower in the breast milk of mothers without HIV. ART drugs in the breast milk of mothers with HIV were associated with a lower relative abundance of Bifidobacterium longum. CONCLUSIONS Maternal HIV infection was associated with adverse growth outcomes of HEU infants in this study, and these differences persist from birth through at least 18 months, which is a critical window for the development of the immune and central nervous systems. We observed that the relative abundance of Bifidobacterium spp. was significantly lower in the gut microbiota of all HEU infants over the first 6 months postpartum, even if HEU infants were receiving breast milk. Breastfeeding was of benefit in our HEU infant cohort in the first weeks postpartum; however, ART drug metabolites in breast milk were associated with a lower abundance of Bifidobacterium. Video abstract.
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Affiliation(s)
- Silvia Grant-Beurmann
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jibreel Jumare
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | | | - Ashley Shutt
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Olivia A Martin
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Claire M Fraser
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA.
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Man Charurat
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
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Mishra RK, Chakravarty R, Siddique N, Pandey KR. Pregnancy outcomes following exposure to efavirenz based antiretroviral therapy in indian women. Indian J Pharmacol 2021; 52:467-471. [PMID: 33666186 PMCID: PMC8092176 DOI: 10.4103/ijp.ijp_263_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES: Mother-to-child transmission of HIV has witnessed a significant reduction due to effective antiretroviral therapy (ART). Efavirenz has been introduced as a part of ART since last few years in the national Prevention of Parent to Child Transmission (PPTCT) program for pregnant women living with HIV. However, data related to adverse pregnancy outcomes associated with efavirenz-based ART are limited in the Indian scenario. The present study evaluated pregnancy outcomes in HIV-infected pregnant women who were given efavirenz-based ART during pregnancy. MATERIALS AND METHODS: It is a retrospective, observational, analytic study carried out at a referral hospital in Western India. Collection of data was done for a period of 5 years, and various adverse outcomes were studied which included preterm delivery, low birth weight (LBW), stillbirths, congenital anomaly, and neonatal death. RESULTS: This study showed a preterm birth rate of 19% and LBW in 36% of cases. There was no significant association with congenital anomaly, stillbirth, or neonatal death. CONCLUSION: There was an association of exposure to efavirenz with an increased incidence of adverse pregnancy outcomes, especially LBW infants. This study emphasizes the requirement of large prospective studies to investigate fetomaternal outcomes in pregnant women exposed to efavirenz.
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Affiliation(s)
- Rajesh Kumar Mishra
- Department of Obstetrics and Gynaecology, Armed Forces Medical College, Pune, Maharashtra, India
| | - Rony Chakravarty
- Department of Obstetrics and Gynaecology, Armed Forces Medical College, Pune, Maharashtra, India
| | - Nilopher Siddique
- Department of Obstetrics and Gynaecology, Armed Forces Medical College, Pune, Maharashtra, India
| | - Kirit Rajendra Pandey
- Department of Obstetrics and Gynaecology, Armed Forces Medical College, Pune, Maharashtra, India
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Zhang X, Wang L, Han J, Xie L, Wu N, Nyirenda R, Shumba K, Simwanza W, Kulyk O, Chilapondwa V, Li X. In utero antiretroviral exposure and sociodemographic characteristics on neurodevelopment of HIV-exposed uninfected children versus HIV-unexposed uninfected healthy children in Malawi. Int J Gynaecol Obstet 2020; 153:424-437. [PMID: 33270235 DOI: 10.1002/ijgo.13511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/29/2020] [Accepted: 12/01/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND To evaluate mental development index (MDI) and psychomotor development index (PDI) scores of HIV-exposed uninfected (HEU) children by timing of in utero antiretroviral treatment (ART) initiation (Option B+) and sociodemographic characteristics compared with HIV-unexposed uninfected (HUU) children in Mzuzu, Malawi. METHODS One hundred HEU children and 100 HUU children aged 2-30 months were recruited. The differences in MDI and PDI scores between HEU and HUU children were tested by Student's t test, analysis of variance, Mann-Whitney U test, and logistic regression analysis. RESULTS The differences in MDI and PDI scores might be related to number of children in the family, delivery, place of residence, family income, complementary feeding, father's or mother's occupation, and degree of education. No significant difference in MDI and PDI scores between HEU and HUU children (P = 0.076 and P = 0.407) was found. Among HEU children, ART in the third trimester and beyond produced a lower PDI score compared with ART before pregnancy and in the first or second trimester (P = 0.027). CONCLUSION The MDI and PDI scores of HEU subgroups with different timing of ART (Option B+) initiation were comparable to those of the HUU group. Early in utero ART initiation was associated with better neurodevelopmental outcomes than ART initiation in the third trimester and beyond.
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Affiliation(s)
- Xiaohua Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | - Lirong Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jucai Han
- Department of Neurology, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Li Xie
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Ning Wu
- Department of Dermatology, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
| | | | - Khumbo Shumba
- Health Economics and Epidemiology Research Office, University of Witwatersrand in Johannesburg, Mzuzu, Malawi
| | | | - Oleksandr Kulyk
- Department of Obstetrics and Gynecology, Mzuzu Central Hospital, Mzuzu, Malawi
| | | | - Xu Li
- Center for Translational Medicine, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.,Department of Gynecology and Obstetrics, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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Oyedeji OA. Malaria in a 2-Month-Old HIV-Exposed Nigerian Infant: Challenges of Care. J Int Assoc Provid AIDS Care 2020; 18:2325958219849052. [PMID: 31117862 PMCID: PMC6748458 DOI: 10.1177/2325958219849052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Reports on malaria and HIV coinfections in exposed infants from tropical countries are
scarce. Results: The case of a 2-month-old HIV-exposed Nigerian infant who presented with intermittent
fever at a Nigerian tertiary hospital is reported. The rarity of the case and the
challenges associated with making the diagnosis informed our decision to report the
case. Conclusion: Diagnosing malaria in HIV-exposed infants in early infancy requires a high index of
suspicion, good knowledge of the clinical presentation, and appropriate microbiological
investigations for sepsis and malaria. Further studies need to be conducted on the
association between malaria and HIV exposure.
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Effect of co-trimoxazole prophylaxis on morbidity and mortality of HIV-exposed, HIV-uninfected infants in South Africa: a randomised controlled, non-inferiority trial. LANCET GLOBAL HEALTH 2020; 7:e1717-e1727. [PMID: 31708152 DOI: 10.1016/s2214-109x(19)30422-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/15/2019] [Accepted: 09/19/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND WHO guidelines recommend co-trimoxazole prophylaxis for HIV-exposed, HIV-uninfected infants. These guidelines date back to an era in which HIV testing of infants was impossible and mothers had poor access to antiretroviral treatment. To determine whether this guideline requires revision in the current era of effective prevention of mother-to-child transmission and early infant diagnosis programmes, we aimed to investigate whether receiving no co-trimoxazole prophylaxis is inferior to receiving co-trimoxazole prophylaxis in the resulting incidence of grade 3 or 4 common childhood illnesses or mortality in breastfed HIV-exposed, HIV-uninfected infants. METHODS We investigated our aim in a randomised controlled, non-inferiority trial. We enrolled the HIV-negative infants of mothers living with HIV who were actively involved in transmission prevention programmes in two clinics in Durban, South Africa. Infants were included in the study if they were breastfeeding at the screening and enrolment visits, and their mother was planning to breastfeed for at least 6 months; were a singleton birth and had a birthweight of 2 kg or more; had no clinically observed genetic disorders; and had no serious illnesses and had not received antibiotics or traditional medications (such as herbal remedies). Infants were randomly assigned (1:1) to receive co-trimoxazole or no co-trimoxazole. In the co-trimoxazole group, infants received the drug until all exposure to HIV had ceased (ie, 6 weeks after last exposure to breastmilk) and the infant was confirmed to be uninfected with HIV. The drug was administered by mothers in once-daily regimens of 20 mg trimethoprim and 100 mg sulfamethoxazole orally (age <6 months or bodyweight <5 kg), or 40 mg trimethoprim and 200 mg sulfamethoxazole orally (age >6 months or bodyweight >5 kg). Clinical and laboratory staff always remained masked to group assignment, but mothers and study counsellors were not. Infants and their mothers attended study visits at ages 6 weeks (for enrolment and randomisation), 10 weeks, 14 weeks, and then monthly from 4 to 12 months. Our primary outcome was the incidence of grade 3 or 4 common childhood illnesses (pneumonia or diarrhoea) or mortality in breastfed HIV-exposed, HIV-uninfected infants by age 12 months. A non-inferiority bound of 5% was used. The study is registered with the Pan African Clinical Trials Registry, number PACTR201311000621110, and the South African National Clinical Trials Registry, number DOH-27-0614-4728. FINDINGS We screened 1570 mother-child pairs for study enrolment, from whom (78%) eligible infants were enrolled into the study between Oct 16, 2013, and May 23, 2018. Of the infants enrolled, 611 (50%) were randomly assigned to the co-trimoxazole group and 609 (50%) were randomly assigned to the no co-trimoxazole group. One (<1%) infant in the no co-trimoxazole group was excluded from the analysis of the final outcomes for having received traditional medicine (which only became apparent after randomisation); therefore, 611 (50%) infants in the co-trimoxazole group and 608 (50%) infants in the no co-trimoxazole group were included in the final intention-to-treat analysis. 136 (22%) infants in the co-trimoxazole group and 139 (23%) infants in the no co-trimoxazole group did not complete the 12-month study visit, predominantly because of loss to follow-up (93 [15%] infants in the co-trimoxazole group; 90 [15%] infants in the no co-trimoxazole group). The cumulative probability of the composite primary outcome was 0·114 (95% CI 0·076 to 0·147; 49 events) in the co-trimoxazole group versus 0·0795 (0·044 to 0·115; 39 events) in the no co-trimoxazole group. The risk difference (no co-trimoxazole group minus co-trimoxazole group) was -0·0319 (-0·075 to 0·011), meaning that the risk was around 3 percentage points lower in the no co-trimoxazole group on the additive scale. INTERPRETATION We can conclude that no co-trimoxazole is not inferior to daily co-trimoxazole among breastfed HIV-exposed, HIV-uninfected infants whose mothers are accessing a prevention of mother-to-child transmission programme in an area unaffected by malaria. We therefore believe that WHO should revise the co-trimoxazole guidelines for HIV-exposed, HIV-uninfected infants in areas unaffected by malaria. FUNDING HIV Prevention Research Unit of the South African Medical Research Council and the Family Larsson-Rosenquist Foundation.
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Musimbi ZD, Rono MK, Otieno JR, Kibinge N, Ochola-Oyier LI, de Villiers EP, Nduati EW. Peripheral blood mononuclear cell transcriptomes reveal an over-representation of down-regulated genes associated with immunity in HIV-exposed uninfected infants. Sci Rep 2019; 9:18124. [PMID: 31792230 PMCID: PMC6889308 DOI: 10.1038/s41598-019-54083-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 11/08/2019] [Indexed: 12/18/2022] Open
Abstract
HIV-exposed uninfected (HEU) infants are disproportionately at a higher risk of morbidity and mortality, as compared to HIV-unexposed uninfected (HUU) infants. Here, we used transcriptional profiling of peripheral blood mononuclear cells to determine immunological signatures of in utero HIV exposure. We identified 262 differentially expressed genes (DEGs) in HEU compared to HUU infants. Weighted gene co-expression network analysis (WGCNA) identified six modules that had significant associations with clinical traits. Functional enrichment analysis on both DEGs and the six significantly associated modules revealed an enrichment of G-protein coupled receptors and the immune system, specifically affecting neutrophil function and antibacterial responses. Additionally, malaria pathogenicity genes (thrombospondin 1-(THBS 1), interleukin 6 (IL6), and arginine decarboxylase 2 (ADC2)) were down-regulated. Of interest, the down-regulated immunity genes were positively correlated to the expression of epigenetic factors of the histone family and high-mobility group protein B2 (HMGB2), suggesting their role in the dysregulation of the HEU transcriptional landscape. Overall, we show that genes primarily associated with neutrophil mediated immunity were repressed in the HEU infants. Our results suggest that this could be a contributing factor to the increased susceptibility to bacterial infections associated with higher morbidity and mortality commonly reported in HEU infants.
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Affiliation(s)
- Zaneta D Musimbi
- Center of Biotechnology and Bioinformatics, Chiromo Campus, University of Nairobi, Nairobi, Kenya.
| | - Martin K Rono
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya.
- Pwani University Biotechnology Research Centre, Pwani University, Kilifi, Kenya.
| | | | | | - Lynette Isabella Ochola-Oyier
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Pwani University Biotechnology Research Centre, Pwani University, Kilifi, Kenya
| | - Etienne Pierre de Villiers
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Eunice W Nduati
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
- Pwani University Biotechnology Research Centre, Pwani University, Kilifi, Kenya
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12
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Abraha A, Myléus A, Byass P, Kahsay A, Kinsman J. The effects of maternal and child HIV infection on health equity in Tigray Region, Ethiopia, and the implications for the health system: a case-control study. AIDS Care 2019; 31:1271-1281. [PMID: 30957540 DOI: 10.1080/09540121.2019.1601670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Services that aim to prevent mother-to-child HIV transmission (PMTCT) can simultaneously reduce the overall impact of HIV infection in a population while also improving maternal and child health outcomes. By taking a health equity perspective, this retrospective case control study aimed to compare the health status of under-5 children born to HIV-positive and HIV-negative mothers in Tigray Region, Ethiopia. Two hundred and thirteen HIV-positive women (cases), and 214 HIV-negative women (controls) participated through interviews regarding their oldest children. Of the children born to HIV-positive mothers, 24% had not been tested, and 17% of those who had been tested were HIV-positive themselves. Only 29% of the HIV-positive children were linked to an ART programme. Unexpectedly, exposed HIV-negative children had fewer reports of perceived poor health as compared to unexposed children. Over 90% of all the children, regardless of maternal HIV status, were breastfed and up-to-date with the recommended immunizations. The high rate of HIV infection among the babies of HIV-positive women along with their low rates of antiretroviral treatment raises serious concerns about the quality of outreach to pregnant women in Tigray Region, and of the follow-up for children who have been exposed to HIV via their mothers.
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Affiliation(s)
- Atakelti Abraha
- a Tigray Health Bureau , Tigray , Ethiopia.,b Ethiopian Health Insurance Agency , Addis Ababa , Ethiopia
| | - Anna Myléus
- c Department of Epidemiology and Global Health, Umeå University , Umeå , Sweden
| | - Peter Byass
- c Department of Epidemiology and Global Health, Umeå University , Umeå , Sweden.,d Institute of Applied Health Sciences, School of Medicine and Dentistry, University of Aberdeen , Aberdeen , UK.,e MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand , Johannesburg , South Africa
| | | | - John Kinsman
- c Department of Epidemiology and Global Health, Umeå University , Umeå , Sweden.,g Department of Public Health Sciences, Global Health (IHCAR), Karolinska Institutet , Stockholm , Sweden
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13
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Jalbert E, Williamson KM, Kroehl ME, Johnson MJ, Cutland C, Madhi SA, Nunes MC, Weinberg A. HIV-Exposed Uninfected Infants Have Increased Regulatory T Cells That Correlate With Decreased T Cell Function. Front Immunol 2019; 10:595. [PMID: 30972079 PMCID: PMC6445326 DOI: 10.3389/fimmu.2019.00595] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 03/05/2019] [Indexed: 01/03/2023] Open
Abstract
Background: HIV-exposed uninfected infants (HEU) are at higher risk of severe infections, hospitalizations and death compared with HIV-unexposed uninfected infants (HUU), but the immune deficit underlying it is not known. To address this gap, we investigated T cell functionality and its relationship to phenotypic profiles of T cells and antigen presenting cells (APC) in HEU and HUU. Methods: Blood mononuclear cells from 55 HEU and 16 HUU were stimulated with Staphylococcal Enterotoxin B (SEB) or mock for 72 h, and tested by flow cytometry for proliferation and expression of Th1, Th2, and regulatory (Treg) markers. In parallel, cells were phenotypically assessed for differentiation profiles of Treg, conventional T cell (Tconv) and APC in unstimulated cells. Results: HEU had lower CD4+ functional responses to SEB/mock and similar CD8+ responses compared with HUU. In the phenotypic T cell panel, HEU showed higher proportions of CD4+ and CD8+ Treg expressing IL10, FOXP3, and CD25; higher effector Tconv and Treg; and lower naïve and CD4+TGFβ+ Treg compared with HUU. In the phenotypic APC panel, HEU showed higher proportions of CD1c+ cDC2, CD123+ pDC, CD16+ inflammatory monocytes and cDC and higher expression of CD103 on CD1c-CD123-CD16-cDC1 compared with HUU. Regression analyses adjusted for HIV exposure and multiple comparisons showed that higher CD8+IL10+ and CD8+FOXP3+ Treg in unstimulated cells were associated with lower CD8+ T cell functional responses to SEB/mock. Functionality was not affected by Tconv differentiation, but higher APC activation in aggregate was associated with higher CD8+IL10+ Treg responses to SEB. Conclusions: T cell functionality was decreased in HEU compared with HUU. High CD8+ Treg proportions were the most important predictors of decreased T cell functionality in HEU and HUU.
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Affiliation(s)
- Emilie Jalbert
- University of Colorado Denver Anschutz Medical Center, Aurora, CO, United States
| | - Kayla M Williamson
- University of Colorado Denver Anschutz Medical Center, Aurora, CO, United States
| | - Miranda E Kroehl
- University of Colorado Denver Anschutz Medical Center, Aurora, CO, United States
| | - Michael J Johnson
- University of Colorado Denver Anschutz Medical Center, Aurora, CO, United States
| | - Clare Cutland
- University of Witwatersrand, Johannesburg, South Africa
| | | | - Marta C Nunes
- University of Witwatersrand, Johannesburg, South Africa
| | - Adriana Weinberg
- University of Colorado Denver Anschutz Medical Center, Aurora, CO, United States
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14
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Ewing AC, Davis NL, Kayira D, Hosseinipour MC, van der Horst C, Jamieson DJ, Kourtis AP. Prescription of Antibacterial Drugs for HIV-Exposed, Uninfected Infants, Malawi, 2004-2010. Emerg Infect Dis 2018; 25. [PMID: 30561313 PMCID: PMC6302572 DOI: 10.3201/eid2501.180782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Antimicrobial drug resistance is a serious health hazard driven by overuse. Administration of antimicrobial drugs to HIV-exposed, uninfected infants, a population that is growing and at high risk for infection, is poorly studied. We therefore analyzed factors associated with antibacterial drug administration to HIV-exposed, uninfected infants during their first year of life. Our study population was 2,152 HIV-exposed, uninfected infants enrolled in the Breastfeeding, Antiretrovirals and Nutrition study in Lilongwe, Malawi, during 2004-2010. All infants were breastfed through 28 weeks of age. Antibacterial drugs were prescribed frequently (to 80% of infants), and most (67%) of the 5,329 prescriptions were for respiratory indications. Most commonly prescribed were penicillins (43%) and sulfonamides (23%). Factors associated with lower hazard for antibacterial drug prescription included receipt of cotrimoxazole preventive therapy, receipt of antiretroviral drugs, and increased age. Thus, cotrimoxazole preventive therapy may lead to fewer prescriptions for antibacterial drugs for these infants.
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15
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Singh J, Filteau S, Todd J, Gumede-Moyo S. Progress in the performance of HIV early infant diagnosis services in Zambia using routinely collected data from 2006 to 2016. BMC Public Health 2018; 18:1297. [PMID: 30477465 PMCID: PMC6258281 DOI: 10.1186/s12889-018-6222-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/14/2018] [Indexed: 11/22/2022] Open
Abstract
Background Early diagnosis and treatment initiation of HIV-infected infants can greatly reduce the risk of infant mortality. The WHO recommends testing HIV-exposed infants at 6 weeks of age and immediate initiation of antiretroviral therapy if positive. This study aimed to determine the feasibility of using an electronic health records system to evaluate the performance of Zambia’s HIV Early Infant Diagnosis services. Methods A retrospective analysis of routinely collected data from the Zambian SmartCare database was performed for the period January 2006 to December 2016. The study population includes all HIV-infected infants (n = 32,593) registered during this period on treatment for HIV. Univariable logistic regression was conducted to identify factors associated with later infant testing and treatment initiation. Results The mean age at infant HIV test decreased from 10.10 months in 2006 to 3.49 months in 2016. Infants born in 2015 were almost 4 times more likely to be tested under 2 months of age compared to infants born in 2006 (OR: 3.72, p-value: < 0.001). The mean time from diagnosis to treatment initiation decreased from 220 days in 2006 to 9 days in 2015. There was substantial regional variability with infants in the provinces of Copperbelt, Luapula and Southern performing best in outcomes and Eastern, Lusaka and Western performing the worst. Conclusions HIV-exposed infants born more recently have significantly better outcomes than infants born a decade ago in Zambia, which could be as a result of increased attention and funding for HIV programmes.
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Affiliation(s)
- Jasleen Singh
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Suzanne Filteau
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Jim Todd
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Sehlulekile Gumede-Moyo
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK. .,School of Public Health, University of Zambia, Lusaka, Zambia.
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16
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Wu J, Li J, Li Y, Loo KK, Yang H, Wang Q, Duan R, Xiao X, Song X, Yang S, Sun L. Neurodevelopmental outcomes in young children born to HIV-positive mothers in rural Yunnan, China. Pediatr Int 2018; 60:618-625. [PMID: 29663621 DOI: 10.1111/ped.13584] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/07/2017] [Accepted: 03/15/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Children born to HIV-infected mothers are at risk for neurodevelopmental delay. Little is known about the neurodevelopmental outcomes of infants and toddlers born to HIV-positive mothers but who were not themselves infected by HIV, especially in poor rural areas. This study was conducted to compare developmental outcomes between young children who were HIV exposed but uninfected (HEU), and their HIV unexposed and uninfected (HUU) peers in rural Yunnan, China. METHODS A total of 250 HEU children aged 6-36 months and 250 HUU children matched for age, gender and residency were recruited from rural Yunnan, China. Neurodevelopmental outcomes were measured using Bayley Scales of Infant and Toddler Development-Third Edition (Bayley III). Multivariate analysis was performed to adjust for potential confounding effects of caregiver demographic data, maternal health status, birth outcome and children's health status. RESULTS HIV exposed but uninfected children had significantly lower composite scores in Bayley III assessment than HUU children (in the cognitive domain: 90.34 vs 92.75, P<0.05; in the adaptive behavior domain: 77.04 vs 80.80, P< 0.05). On stepwise logistic regression analysis, HIV exposure (OR, 1.45; 95%CI: 1.04-1.98) and child malnutrition (OR, 1.67; 95%CI: 1.09-2.23) were risk factors for below-average cognition development. Mother's low education and child anemia were significant risk factors for below-average motor and adaptive behavior development. CONCLUSION Perinatal HIV infection may have a negative impact on neurodevelopment in young children. Other factors such as mother's education and child nutrition status may play important roles in child neurodevelopment, especially in resource-poor areas. Further studies are needed to examine the long-term effect of perinatal HIV infection on later childhood neurodevelopment.
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Affiliation(s)
- Jie Wu
- Department of Pediatrics, Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jing Li
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Yan Li
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Kek Khee Loo
- Department of Pediatrics, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, USA
| | - Haixia Yang
- Department of Health Care, Kunming Maternal and Child Health Hospital, Kunming, China
| | - Qiong Wang
- Department of Health Care, Kunming Maternal and Child Health Hospital, Kunming, China
| | - Rufei Duan
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Xia Xiao
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Xiaoxiao Song
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Siwei Yang
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
| | - Lin Sun
- Department of Women and Child Health, School of Public Health, Kunming Medical University, Kunming, China
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17
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Weinberg A, Mussi-Pinhata MM, Yu Q, Cohen RA, Almeida VC, Amaral FR, Freimanis L, Harris DR, Smith C, Siberry G. Factors Associated with Lower Respiratory Tract Infections in HIV-Exposed Uninfected Infants. AIDS Res Hum Retroviruses 2018; 34:527-535. [PMID: 29620934 DOI: 10.1089/aid.2017.0245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
To identify factors that predispose human immunodeficiency virus (HIV)-exposed uninfected infants (HEUs) to higher incidence of severe infections, hospitalization, and death in the first 6-24 months of life compared with HEUs with and without lower respiratory tract infection (LRTI) in the first 6 months of life. Nested case-control study of 107 LRTI+ infants enrolled in the International Site Development Initiative (NISDI) Perinatal and Longitudinal Study in Latin American Countries (LILAC) studies with and 140 LRTI- in the first 6 months, matched by date and place of birth. Infants and mothers had plasma antibodies measured against respiratory syncytial virus (RSV), parainfluenza (PIV) 1, 2, 3, influenza, and pneumococcus 1, 5, 6B, and 14. Compared with LRTI-, mothers of LRTI+ HEUs had lower years of education, lower CD4+ cells, and higher HIV plasma viral load at delivery, but similar use of antiretrovirals and cotrimoxazole and other sociodemographic characteristics. LRTI+ and LRTI- HEUs had similar demographic and hematological characteristics and antibody concentrations against respiratory pathogens at birth. At 6 months, the rates of seroconversions to respiratory pathogens and antibody responses to tetanus vaccine were also similar. However, antibody concentrations to RSV were significantly higher in LRTI+ compared with LRTI- HEUs and marginally higher to PIV1. Maternal factors associated with advanced HIV disease, but unrelated to the use of antiretrovirals, cotrimoxazole, or the level of maternal antibodies against respiratory pathogens, contribute to the increased risk of LRTI in HEUs. In HEUs, antiretroviral and cotrimoxazole use, exposure to respiratory pathogens and humoral immune responses were not associated with the incidence of LRTI.
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Affiliation(s)
- Adriana Weinberg
- Departments of Pediatrics, Medicine and Pathology, Anschutz Medical Center, University of Colorado Denver, Aurora, Colorado
| | - Marisa M. Mussi-Pinhata
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | | | | | - Volia C. Almeida
- Departamento de Medicina da Universidade Federal de Sao Carlos, Sao Carlos, Brazil
| | - Fabiana R. Amaral
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | | | | | - Christiana Smith
- Departments of Pediatrics, Medicine and Pathology, Anschutz Medical Center, University of Colorado Denver, Aurora, Colorado
| | - George Siberry
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
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18
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Arikawa S, Rollins N, Jourdain G, Humphrey J, Kourtis AP, Hoffman I, Essex M, Farley T, Coovadia HM, Gray G, Kuhn L, Shapiro R, Leroy V, Bollinger RC, Onyango-Makumbi C, Lockman S, Marquez C, Doherty T, Dabis F, Mandelbrot L, Le Coeur S, Rolland M, Joly P, Newell ML, Becquet R. Contribution of Maternal Antiretroviral Therapy and Breastfeeding to 24-Month Survival in Human Immunodeficiency Virus-Exposed Uninfected Children: An Individual Pooled Analysis of African and Asian Studies. Clin Infect Dis 2018; 66:1668-1677. [PMID: 29272387 PMCID: PMC5961296 DOI: 10.1093/cid/cix1102] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 12/19/2017] [Indexed: 11/14/2022] Open
Abstract
Background Human immunodeficiency virus (HIV)-infected pregnant women increasingly receive antiretroviral therapy (ART) to prevent mother-to-child transmission (PMTCT). Studies suggest HIV-exposed uninfected (HEU) children face higher mortality than HIV-unexposed children, but most evidence relates to the pre-ART era, breastfeeding of limited duration, and considerable maternal mortality. Maternal ART and prolonged breastfeeding while on ART may improve survival, although this has not been reliably quantified. Methods Individual data on 19 219 HEU children from 21 PMTCT trials/cohorts undertaken from 1995 to 2015 in Africa and Asia were pooled to estimate the association between 24-month mortality and maternal/infant factors, using random-effects Cox proportional hazards models. Adjusted attributable fractions of risks computed using the predict function in the R package "frailtypack" were used to estimate the relative contribution of risk factors to overall mortality. Results Cumulative incidence of death was 5.5% (95% confidence interval, 5.1-5.9) by age 24 months. Low birth weight (LBW <2500 g, adjusted hazard ratio (aHR, 2.9), no breastfeeding (aHR, 2.5), and maternal death (aHR, 11.1) were significantly associated with increased mortality. Maternal ART (aHR, 0.5) was significantly associated with lower mortality. At the population level, LBW accounted for 16.2% of 24-month mortality, never breastfeeding for 10.8%, mother not receiving ART for 45.6%, and maternal death for 4.3%; combined, these factors explained 63.6% of deaths by age 24 months. Conclusions Survival of HEU children could be substantially improved if public health practices provided all HIV-infected mothers with ART and supported optimal infant feeding and care for LBW neonates.
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Affiliation(s)
- Shino Arikawa
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | - Nigel Rollins
- Department of Maternal, Newborn, Child and Adolescent Health, World Health Organization, Geneva, Switzerland
| | - Gonzague Jourdain
- Institut de recherche pour le développement UMI 174-PHPT, Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Jean Humphrey
- Department of International Health, Center for Global Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Athena P Kourtis
- Women’s Health and Fertility Branch, Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention
- Emory University School of Medicine and Eastern Virginia Medical School, Atlanta, Georgia
| | - Irving Hoffman
- Division of Infectious Diseases, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill
| | - Max Essex
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | | | - Hoosen M Coovadia
- Maternal Adolescent and Child Health, University of the Witwatersrand, Johannesburg
| | - Glenda Gray
- South African Medical Research Council, Cape Town
- Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Louise Kuhn
- Gertrude H. Sergievsky Center, College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Roger Shapiro
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Valériane Leroy
- Inserm, Centre de recherche Inserm U1027, Université Paul Sabatier Toulouse 3, France
| | - Robert C Bollinger
- Center for Clinical Global Health Education, Johns Hopkins University, Baltimore, Maryland
| | - Carolyne Onyango-Makumbi
- Makerere University–Johns Hopkins University Research Collaboration/MU-JHU CARE LTD, Kampala, Uganda
| | - Shahin Lockman
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Carina Marquez
- Division of HIV, Infectious Diseases and Global Medicine, University of California San Francisco, and Zuckerberg San Francisco General Hospital
| | | | - François Dabis
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | | | - Sophie Le Coeur
- Institut de recherche pour le développement UMI 174-PHPT, Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Institut National d’Etudes Démographiques (Ined), Paris
| | - Matthieu Rolland
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | - Pierre Joly
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team Biostatistics, France
| | - Marie-Louise Newell
- Institute for Developmental Science and Global Health Research Institute, Faculty of Medicine, University of Southampton, United Kingdom
| | - Renaud Becquet
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
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19
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Delicio AM, Lajos GJ, Amaral E, Cavichiolli F, Polydoro M, Milanez H. Adverse effects in children exposed to maternal HIV and antiretroviral therapy during pregnancy in Brazil: a cohort study. Reprod Health 2018; 15:76. [PMID: 29747664 PMCID: PMC5946413 DOI: 10.1186/s12978-018-0513-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/20/2018] [Indexed: 01/08/2023] Open
Abstract
Background Antiretroviral therapy (ART) in pregnancy was associated with a drastic reduction in HIV mother-to-child transmission (MTCT), although it was associated with neonatal adverse effects. The aim of this study was to evaluate the neonatal effects to maternal ART. Methods This study was a cohort of newborns from HIV pregnant women followed at the CAISM/UNICAMP Obstetric Clinic from 2000 to 2015. The following adverse effects were evaluated: anemia, thrombocytopenia, liver function tests abnormalities, preterm birth, low birth weight and congenital malformation. Data collected from patients’ files was added to a specific database. Descriptive analysis was shown in terms of absolute (n) and relative (%) frequencies and mean, median and standard deviation calculations. The association between variables was tested through Chi-square or Fisher exact test (n < 5) and relative risk (RR) with its respective p values for the categorical ones and t-Student (parametric data) or Mann-Whitney (non-parametric data) for the quantitative ones. The significant level used was 0.05. A multivariate Cox Logistic Regression was done. Statistical analysis was performed using SAS version 9.4. Results Data from 787 newborns was analyzed. MTCT rate was 2.3%, with 0.8% in the last 5 years. Observed neonatal adverse effects were: liver function tests abnormalities (36%), anemia (25.7%), low birth weight (22.5%), preterm birth (21.7%), children small for gestational age (SGA) (18%), birth defects (10%) and thrombocytopenia (3.6%). In the multivariate analysis, peripartum CD4 higher than 200 cells/mm3 was protective for low birth weight and preterm birth, and C-section was associated with low birth weight, but not with preterm birth. Neonatal anemia was associated with preterm birth and exposure to maternal AZT. Liver function tests abnormalities were associated with detectable peripartum maternal viral load and exposure to nevirapine. No association was found between different ART regimens or timing of exposure with preterm birth, low birth weight or congenital malformation. Conclusion Highly active antiretroviral treatment in pregnant women and viral load control were the main factors associated with MTCT reduction. Antiretroviral use is associated with a high frequency but mainly low severity adverse effects in newborns.
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Affiliation(s)
- Adriane M Delicio
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil. .,Department of Clinics, School of Medical Sciences, University of Campinas, Campinas, Brazil. .,Referral Center for STIs and AIDS of Campinas, Campinas, Brazil.
| | - Giuliane J Lajos
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Eliana Amaral
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Fernanda Cavichiolli
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Marina Polydoro
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Helaine Milanez
- Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil
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20
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Henrick BM, Yao XD, Nasser L, Roozrogousheh A, Rosenthal KL. Breastfeeding Behaviors and the Innate Immune System of Human Milk: Working Together to Protect Infants against Inflammation, HIV-1, and Other Infections. Front Immunol 2017; 8:1631. [PMID: 29238342 PMCID: PMC5712557 DOI: 10.3389/fimmu.2017.01631] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/09/2017] [Indexed: 12/21/2022] Open
Abstract
The majority of infants’ breastfeeding from their HIV-infected mothers do not acquire HIV-1 infection despite exposure to cell-free virus and cell-associated virus in HIV-infected breast milk. Paradoxically, exclusive breastfeeding regardless of the HIV status of the mother has led to a significant decrease in mother-to-child transmission (MTCT) compared with non-exclusive breastfeeding. Although it remains unclear how these HIV-exposed infants remain uninfected despite repeated and prolonged exposure to HIV-1, the low rate of transmission is suggestive of a multitude of protective, short-lived bioactive innate immune factors in breast milk. Indeed, recent studies of soluble factors in breast milk shed new light on mechanisms of neonatal HIV-1 protection. This review highlights the role and significance of innate immune factors in HIV-1 susceptibility and infection. Prevention of MTCT of HIV-1 is likely due to multiple factors, including innate immune factors such as lactoferrin and elafin among many others. In pursuing this field, our lab was the first to show that soluble toll-like receptor 2 (sTLR2) directly inhibits HIV infection, integration, and inflammation. More recently, we demonstrated that sTLR2 directly binds to selective HIV-1 proteins, including p17, gp41, and p24, leading to significantly reduced NFκB activation, interleukin-8 production, CCR5 expression, and HIV infection in a dose-dependent manner. Thus, a clearer understanding of soluble milk-derived innate factors with known antiviral functions may provide new therapeutic insights to reduce vertical HIV-1 transmission and will have important implications for protection against HIV-1 infection at other mucosal sites. Furthermore, innate bioactive factors identified in human milk may serve not only in protecting infants against infections and inflammation but also the elderly; thus, opening the door for novel innate immune therapeutics to protect newborns, infants, adults, and the elderly.
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Affiliation(s)
- Bethany M Henrick
- Department of Food Science and Technology, University of California, Davis, Davis, CA, United States.,Foods for Health Institute, University of California, Davis, Davis, CA, United States
| | - Xiao-Dan Yao
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Laila Nasser
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Ava Roozrogousheh
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Kenneth L Rosenthal
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
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Abstract
BACKGROUND Growth failure is common among HIV-infected infants, but there are limited data on the effects of HIV exposure or timing of HIV acquisition on growth. METHODS Fourteen thousand one hundred ten infants were enrolled in the Zimbabwe Vitamin A for Mothers and Babies trial in Zimbabwe before the availability of antiretroviral therapy or co-trimoxazole. Anthropometric measurements were taken from birth through 12-24 months of age. Growth outcomes were compared between 5 groups of children: HIV-infected in utero (IU), intrapartum (IP) or postnatally (PN); HIV-exposed uninfected (HEU); and HIV unexposed. RESULTS Growth failure was common across all groups of children. Compared with HIV-unexposed children, IU-, IP- and PN-infected children had significantly lower length-for-age and weight-for-length Z scores throughout the first 2 years of life. At 12 months, odds ratios for stunting were higher in IU [6.25, 95% confidence interval (CI): 4.20-9.31] and IP infants (4.76, 95% CI: 3.58-6.33) than in PN infants (1.70, 95% CI: 1.16-2.47). Compared with HIV-unexposed infants, HEU infants at 12 months had odds ratios for stunting of 1.23 (95% CI: 1.08-1.39) and wasting of 1.56 (95% CI: 1.22-2.00). CONCLUSIONS HIV-infected infants had very high rates of growth failure during the first 2 years of life, particularly if IU or IP infected, highlighting the importance of early infant diagnosis and antiretroviral therapy. HEU infants had poorer growth than HIV-unexposed infants in the first 12 months of life.
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22
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Health and survival of HIV perinatally exposed but uninfected children born to HIV-infected mothers. Curr Opin HIV AIDS 2017; 11:465-476. [PMID: 27716731 DOI: 10.1097/coh.0000000000000300] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The number of HIV-exposed but uninfected (HEU) infants exposed to both HIV and multiple antiretroviral drugs in utero and during prolonged breastfeeding is increasing in low-income countries where HIV prevalence is the highest. We review recent evidence on the effects of perinatal/postnatal exposure to maternal HIV and combined antiretroviral therapy (cART) on health outcomes of HEU children (mitochondrial and metabolic toxicity, adverse pregnancy outcomes, neurodevelopment, growth, infectious morbidity, and mortality). RECENT FINDINGS Several studies have reported ART-associated mitochondrial toxicity and metabolic disorders with conflicting results on adverse pregnancy outcomes, underscoring the need to conduct further investigations on these questions. Studies about congenital abnormalities report no significant differences between HEU exposed to ART and HIV-unexposed (HUU) children. Updated French data showed no significant difference in cancer incidence between HEU cART-exposed children and the general paediatric population. Furthermore, HEU children exposed to maternal cART have modest but significant impairment of development and a higher risk of growth impairment. Finally, HEU have higher risks of infections (mainly low respiratory tract infections and diarrhoea) and malaria than HUU children, particularly in children not breastfed or after early weaning. Higher mortality risk from infectious disease is reported in HEU compared to HUU children. SUMMARY As we move toward the elimination of mother-to-child transmission of HIV, HEU children are an emerging population whose health outcomes remain to be fully described. Future large cohorts of HEU children using careful comparison groups of HUU in the post-ART era are needed to better understand their long-term health outcomes.
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23
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Davis NL, Wiener J, Juliano JJ, Adair L, Chasela CS, Kayira D, Hudgens MG, van der Horst C, Jamieson DJ, Kourtis AP. Co-trimoxazole Prophylaxis, Asymptomatic Malaria Parasitemia, and Infectious Morbidity in Human Immunodeficiency Virus-Exposed, Uninfected Infants in Malawi: The BAN Study. Clin Infect Dis 2017; 65:575-580. [PMID: 28444232 PMCID: PMC5850033 DOI: 10.1093/cid/cix367] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 04/18/2017] [Indexed: 12/19/2022] Open
Abstract
Background Human immunodeficiency virus (HIV)-exposed infants are disproportionately at risk of morbidity and mortality compared with their HIV-unexposed counterparts. The role of co-trimoxazole preventive therapy (CPT) in reducing leading causes of infectious morbidity is unclear. Methods We used data from the Breastfeeding, Antiretrovirals and Nutrition (BAN) clinical trial (conducted 2004-2010, Malawi) to assess the association of (1) CPT and (2) asymptomatic malaria parasitemia with respiratory and diarrheal morbidity in infants. In June 2006, all HIV-exposed infants in BAN began receiving CPT (240 mg) from 6 to 36 weeks of age, or until weaning occurred and HIV infection was ruled out. All HIV-exposed, uninfected infants (HEIs) at 8 weeks of age (n = 1984) were included when CPT was the exposure. A subset of HEIs (n = 471) were tested for malarial parasitemia using dried blood spots from 12, 24, and 36 weeks of age. Cox proportional hazards models for recurrent gap-time data were used to examine the association of time-varying exposures on morbidity. Results CPT was associated with a 36% reduction in respiratory morbidity (hazard ratio [HR], 0.64 [95% confidence interval {CI}, .60-.69]) and a 41% reduction in diarrheal morbidity (HR, 0.59 [95% CI, .54-.65]). Having asymptomatic malaria parasitemia was associated with a 40% increase in respiratory morbidity (HR, 1.40 [95% CI, 1.13-1.74]) and a 50% increase in diarrheal morbidity (HR, 1.50 [95% CI, 1.09-2.06]), after adjusting for CPT. Conclusions CPT may have an important role to play in reducing the leading global causes of morbidity and mortality in the growing population of HEIs in malaria-endemic resource-limited settings.
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Affiliation(s)
- Nicole L Davis
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jeffrey Wiener
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jonathan J Juliano
- Division of Infectious Diseases, Department of Medicine, School of Medicine
| | - Linda Adair
- Carolina Population Center, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Charles S Chasela
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Parktown, South Africa
| | | | - Michael G Hudgens
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, USA
| | | | - Denise J Jamieson
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Athena P Kourtis
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
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Abstract
Introduction: HIV reduces fertility through biological and social pathways, and antiretroviral treatment (ART) can ameliorate these effects. In northern Malawi, ART has been available since 2007 and lifelong ART is offered to all pregnant or breastfeeding HIV-positive women. Methods: Using data from the Karonga Health and Demographic Surveillance Site in Malawi from 2005 to 2014, we used total and age-specific fertility rates and Cox regression to assess associations between HIV and ART use and fertility. We also assessed temporal trends in in utero and breastfeeding HIV and ART exposure among live births. Results: From 2005 to 2014, there were 13,583 live births during approximately 78,000 person years of follow-up of women aged 15–49 years. The total fertility rate in HIV-negative women decreased from 6.1 [95% confidence interval (CI): 5.5 to 6.8] in 2005–2006 to 5.1 (4.8–5.5) in 2011–2014. In HIV-positive women, the total fertility rate was more stable, although lower, at 4.4 (3.2–6.1) in 2011–2014. In 2011–2014, compared with HIV-negative women, the adjusted (age, marital status, and education) hazard ratio was 0.7 (95% CI: 0.6 to 0.9) and 0.8 (95% CI: 0.6 to 1.0) for women on ART for at least 9 months and not (yet) on ART, respectively. The crude fertility rate increased with duration on ART up to 3 years before declining. The proportion of HIV-exposed infants decreased, but the proportion of ART-exposed infants increased from 2.4% in 2007–2010 to 3.5% in 2011–2014. Conclusions: Fertility rates in HIV-positive women are stable in the context of generally decreasing fertility. Despite a decrease in HIV-exposed infants, there has been an increase in ART-exposed infants.
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Chevalier MS, King CC, Ellington S, Wiener J, Kayira D, Chasela CS, Jamieson DJ, Kourtis AP. Maternal and neonatal outcomes among women with HIV infection and their infants in Malawi. Int J Gynaecol Obstet 2017; 137:282-289. [PMID: 28258582 PMCID: PMC5419872 DOI: 10.1002/ijgo.12136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 01/11/2017] [Accepted: 02/28/2017] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To describe maternal and neonatal morbidity and mortality among women with HIV infection and their infants. METHODS A secondary analysis was undertaken of data obtained in the BAN Study, a trial of postnatal antiretrovirals among pregnant women with HIV infection enrolled in 2004-2010. Mothers and infants had 13 scheduled visits through 48 weeks of follow-up. Serious maternal morbidity and mortality were examined at delivery (n=2791), from delivery to 6 weeks later (n=2369) and from 7 to 48 weeks (n=1980). Neonatal morbidity and mortality were examined (n=2685). RESULTS Of 2791 deliveries, 169 (6.1%) were by cesarean (153 emergency). Compared with women with vaginal delivery, those with cesarean delivery had lower prenatal HIV viral loads (P=0.016) and increased odds of pre-eclampsia/eclampsia (odds ratio [OR] 10.8, 95% CI 4.4-26.8). Women with cesarean delivery also had increased odds of serious infection with 14 days of delivery (OR 3.0, 95% CI 1.3-7.4) and severe anemia (grade 3 or 4) by 6 weeks (OR 6.7, 95% CI 2.3-19.1). Infants born by cesarean had increased odds of a low 5-minute Apgar score (OR 8.1, 95% CI 3.5-18.6) and admission to an intensive care unit (OR 5.4, 95% CI 3.7-7.8). CONCLUSION Odds of serious maternal and neonatal morbidity were higher after cesarean than vaginal delivery, despite lower maternal viral loads.
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Affiliation(s)
- Michelle S. Chevalier
- Division of Global HIV and Tuberculosis, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Caroline C. King
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sascha Ellington
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jeffrey Wiener
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dumbani Kayira
- University of North Carolina Project Malawi, Lilongwe, Malawi
| | - Charles S. Chasela
- Epidemiology and Strategic Information, Human Sciences Research Council, Pretoria, South Africa
| | - Denise J. Jamieson
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Athena P. Kourtis
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
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O'Leary M, Edmond K, Floyd S, Newton S, Thomas G, Thomas SL. A cohort study of low birth weight and health outcomes in the first year of life, Ghana. Bull World Health Organ 2017; 95:574-583. [PMID: 28804169 PMCID: PMC5537746 DOI: 10.2471/blt.16.180273] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 11/20/2016] [Accepted: 04/06/2017] [Indexed: 12/22/2022] Open
Abstract
Objective To investigate the effect of birth weight on infant mortality, illness and care seeking in rural Ghana. Methods Using randomized controlled trial data, we compared infants weighing 2.00–2.49, 1.50–1.99 and < 1.50 kg with non-low-birth-weight infants. We generated adjusted mortality hazard ratios (aHR), adjusted illness rate ratios (aRR) and adjusted odds ratios (aOR) for health-facility admissions and absence of care seeking for four time periods: infancy, the neonatal period, early infancy and late infancy – represented by ages of 0–364, 0–27, 28–182 and 183–364 days, respectively. Findings Among 22 906 infants, compared with non-low-birth-weight infants: (i) infants weighing 2.00–2.49, 1.50–1.99 and < 1.50 kg were about two (aHR: 2.13; 95% confidence interval, CI: 1.76–2.59), eight (aHR: 8.21; 95% CI: 6.26–10.76) and 25 (aHR: 25.38; 95% CI: 18.36–35.10) times more likely to die in infancy, respectively; (ii) those born weighing < 1.50 kg were about 48 (aHR: 48.45; 95% CI: 32.81–71.55) and eight (aHR: 8.42; 95% CI: 3.09–22.92) times more likely to die in the neonatal period and late infancy, respectively; (iii) those born weighing 1.50–1.99 kg (aRR: 1.57; 95% CI: 1.27–1.95) or < 1.50 kg (aRR: 1.58; 95% CI: 1.13–2.21) had higher neonatal illness rates; and (iv) for those born weighing 1.50–1.99 kg, care was less likely to be sought in the neonatal period (aOR: 3.30; 95% CI: 1.98–5.48) and early infancy (aOR : 1.74; 95% CI: 1.26–2.39). Conclusion For low-birth-weight infants in Ghana, strategies to minimize mortality and improve care seeking are needed.
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Affiliation(s)
- Maureen O'Leary
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, England
| | - Karen Edmond
- School of Paediatrics and Child Health, University of Western Australia, Crawley, Australia
| | - Sian Floyd
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, England
| | - Sam Newton
- Department of Community Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Gyan Thomas
- Kintampo Health Research Centre, Kintampo, Ghana
| | - Sara L Thomas
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, England
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Lockman S, Hughes M, Powis K, Ajibola G, Bennett K, Moyo S, van Widenfelt E, Leidner J, McIntosh K, Mazhani L, Makhema J, Essex M, Shapiro R. Effect of co-trimoxazole on mortality in HIV-exposed but uninfected children in Botswana (the Mpepu Study): a double-blind, randomised, placebo-controlled trial. Lancet Glob Health 2017; 5:e491-e500. [PMID: 28395844 PMCID: PMC5502726 DOI: 10.1016/s2214-109x(17)30143-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 01/26/2017] [Accepted: 03/02/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Co-trimoxazole prophylaxis reduces mortality among HIV-infected children, but efficacy in HIV-exposed but uninfected (HEU) children in a non-malarial, low-breastfeeding setting with a low risk of mother-to-child transmission of HIV is unclear. METHODS HEU children in Botswana were randomly assigned to receive co-trimoxazole (100 mg/20 mg once daily until age 6 months and 200 mg/40 mg once daily thereafter) or placebo from age 14-34 days to age 15 months. Mothers chose whether to breastfeed or formula feed their children. Breastfed children were randomly assigned to breastfeeding for 6 months (Botswana guidelines) or 12 months (WHO guidelines). The primary outcome, analysed by a modified intention-to-treat approach, was cumulative child mortality from treatment assignment to age 18 months. We also assessed HIV-free survival by duration of breastfeeding. This trial is registered with ClinicalTrials.gov, number NCT01229761. FINDINGS From June 7, 2011, to April 2, 2015, 2848 HEU children were randomly assigned to receive co-trimoxazole (n=1423) or placebo (n=1425). The data and safety monitoring board stopped the study early because of a low likelihood of benefit with co-trimoxazole. Only 153 (5%) children were lost to follow-up (76 in the co-trimoxazole group and 77 in the placebo group), and 2053 (72%) received treatment continuously to age 15 months, death, or study closure. Mortality after the start of study treatment was similar in the two study groups: 30 children died in the co-trimoxazole group, compared with 34 in the placebo group (estimated mortality at 18 months 2·4% vs 2·6%; difference -0·2%, 95% CI -1·5 to 1·0, p=0·70). We saw no difference in hospital admissions between groups (12·5% in the co-trimoxazole group vs 17·4% in the placebo group, p=0·19) or grade 3-4 clinical adverse events (16·5% vs 18·4%, p=0·18). Grade 3-4 anaemia did not differ between groups (8·1% vs 8·3%, p=0·93), but grade 3-4 neutropenia was more frequent in the co-trimoxazole group than in the placebo group (8·1% vs 5·8%, p=0·03). More co-trimoxazole resistance in commensal Escherichia coli isolated from stool samples was seen in children aged 3 or 6 months in the co-trimoxazole group than in the placebo group (p=0·001 and p=0·01, respectively). 572 (20%) children were breastfed. HIV infection and mortality did not differ significantly by duration of breastfeeding (3·9% for 6 months vs 1·9% for 12 months, p=0·21). INTERPRETATION Prophylactic co-trimoxazole seems to offer no survival benefit among HEU children in non-malarial, low-breastfeeding areas with a low risk of mother-to-child transmission of HIV. FUNDING US National Institutes of Health.
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Affiliation(s)
- Shahin Lockman
- Division of Infectious Disease, Brigham and Women's Hospital, Boston, MA, USA; Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana; Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Michael Hughes
- Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Kate Powis
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana; Division of Global Health, Massachusetts General Hospital, Boston, MA, USA
| | - Gbolahan Ajibola
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana
| | - Kara Bennett
- Bennett Statistical Consulting Inc, Ballston Lake, NY, USA
| | - Sikhulile Moyo
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana
| | - Erik van Widenfelt
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana
| | | | - Kenneth McIntosh
- Division of Infectious Disease, Boston Children's Hospital, Boston, MA, USA
| | - Loeto Mazhani
- Department of Paediatrics, University of Botswana School of Medicine, Gaborone, Botswana
| | - Joseph Makhema
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana
| | - Max Essex
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana; Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Roger Shapiro
- Botswana Harvard AIDS Institute Partnership for HIV Research and Education, Gaborone, Botswana; Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA; Division of Infectious Disease, Beth Israel Deaconess Medical Center, Boston, MA, USA.
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Excess respiratory viral infections and low antibody responses among HIV-exposed, uninfected infants. AIDS 2017; 31:669-679. [PMID: 28060016 DOI: 10.1097/qad.0000000000001393] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE HIV-exposed uninfected (HEUs) infants have frequent severe infection, hospitalization, and death. We performed a serologic investigation to determine the role of common childhood respiratory pathogens in the excess incidence of infections in HEUs. DESIGN Prospective cohort study of mother-infant pairs. METHODS Among 247 HEUs and 88 HIV-unexposed uninfected (HUU) infant-mother pairs, we measured maternal antibodies to respiratory syncytial virus (RSV) and pneumococcus (PNC 1, 5, 6B, 14); infant antibodies to RSV, influenza A (flu), parainfluenza viruses (1, 2, 3), and PNC 1, 5, 6B, and 14 were measured at 0 and 6 months, and antitetanus antibodies at 6 months. RESULTS HIV-infected mothers had higher RSV and lower PNC antibody concentrations at delivery than uninfected mothers. Transplacental transfer of maternal antibodies, particularly for RSV, was lower in HEUs compared with HUUs. At birth, HEUs had higher concentrations of anti-RSV antibodies than HUUs, but lower antibodies to the other respiratory agents. At 6 months, HEUs had significantly higher proportions of seroconversions and higher antibody concentrations against parainfluenza viruses 1, 2, and 3. There were no significant differences in seroconversions to flu and RSV, but antibody concentrations to RSV were six-fold lower in HEUs versus HUUs at 6 months. Antibody responses to at least two doses of tetanus vaccine were also six-fold lower in HEUs compared with HUUs. CONCLUSION Six-month-old HEUs had a higher incidence of respiratory viral infections than HUUs. In addition to the low passive protection from maternal antibodies, low antibody responses of HEUs may contribute to increased morbidity and mortality.
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SHERR L, SKEEN S, HENSELS IS, TOMLINSON M, MACEDO A. The effects of caregiver and household HIV on child development: a community-based longitudinal study of young children. Child Care Health Dev 2016; 42:890-899. [PMID: 27514630 PMCID: PMC6086490 DOI: 10.1111/cch.12387] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/29/2016] [Accepted: 07/04/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Many studies that document child outcomes in the context of parental HIV - which has been established as a risk factor for child development - focus on older children/adolescents. Studies also concentrate on the status of the primary caregiver, not other household members who might be infected. DESIGN This study examined the effects of caregiver and household HIV on child development (4-13 years) in South Africa and Malawi (2011-2014). METHODS Data were gathered from 989 children and their primary caregivers at baseline and repeated at 12-15 months follow-up (86.5% follow-up rate). Only caregivers of a single child and caregiver/child dyads without missing data were included, providing a sample of 808 dyads for analysis. Children were divided into three groups according to caregiver-reported HIV burden: having an HIV-positive primary caregiver (19.8%), having HIV in the household (14.2%) or no HIV (66%). RESULTS The HIV burden was positively associated with an array of negative child outcomes, often mediated by caregiver depression levels. Family HIV burden at baseline affected child behavioural problems at follow-up indirectly through carer depression (B = 0.02; CI = 0.003, 0.06). Internalizing (B = 0.02; CI = 0.002, 0.05) and externalizing problems at follow-up (B = 0.01; CI = 0.0002, 0.03) were also indirectly affected by family HIV burden through caregiver depression. CONCLUSIONS The data suggest that family HIV can affect child development, emphasizing the important role of depression in the pathway to such an effect. Community-based interventions directed at alleviating parental depression in the presence of HIV may help to interrupt the cycle of family HIV and adverse child outcomes.
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Affiliation(s)
- Lorraine SHERR
- Department of Infection and Population Health, University College London, United Kingdom,Corresponding author: Prof Lorraine Sherr, Rowland Hill Street, London, NW3 2PF, United Kingdom,
| | - Sarah SKEEN
- Department of Psychology, Stellenbosch University, South Africa,Department of Psychiatry and Mental Health, University of Cape Town, South Africa
| | - Imca S. HENSELS
- Department of Infection and Population Health, University College London, United Kingdom,School of Psychological Sciences, University of Manchester, United Kingdom
| | - Mark TOMLINSON
- Department of Psychology, Stellenbosch University, South Africa
| | - Ana MACEDO
- Department of Infection and Population Health, University College London, United Kingdom
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Kakuru A, Natureeba P, Muhindo MK, Clark TD, Havlir DV, Cohan D, Dorsey G, Kamya MR, Ruel T. Malaria burden in a birth cohort of HIV-exposed uninfected Ugandan infants living in a high malaria transmission setting. Malar J 2016; 15:500. [PMID: 27756308 PMCID: PMC5070200 DOI: 10.1186/s12936-016-1568-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/07/2016] [Indexed: 11/13/2022] Open
Abstract
Background HIV-exposed, uninfected (HEU) infants suffer high morbidity and mortality in the first year of life compared to HIV-unexposed, uninfected (HUU) infants, but accurate data on the contribution of malaria are limited. Methods The incidence of febrile illnesses and malaria were evaluated in a birth cohort of HEU infants. Infants were prescribed daily trimethoprim–sulfamethoxazole (TS) prophylaxis from 6 weeks of age until exclusion of HIV-infection after cessation of breastfeeding. Infants were followed for all illnesses using passive surveillance and routine blood smears were done monthly. Malaria was diagnosed as a positive blood smear plus fever. Placental malaria was determined by histopathology, placental blood smear and PCR. Risk factors for time to first episode of malaria were assessed using a Cox proportional hazards model. Malaria incidence among HEU infants aged 6–12 months was compared to that in other cohorts of HEU and HUU infants from the same region. Results Among 361 HEU infants enrolled, 248 completed 12 months of follow-up resulting in 1562 episodes of febrile illness and 253 episodes of malaria after 305 person-years of follow-up. The incidence of febrile illness was 5.12 episodes per person-year (PPY), ranging from 4.13 episodes PPY in the first 4 months of life to 5.71 episodes PPY between 5 and 12 months of age. The overall malaria incidence was 0.83 episodes per person-year (PPY), increasing from 0.03 episodes PPY in the first 2 months of life to 2.00 episodes PPY between 11 and 12 months of age. There were no episodes of complicated malaria. The prevalence of asymptomatic parasitaemia was 1.2 % (19 of 1568 routine smears positive). Infants born to mothers with parasites detected from placental blood smears were at higher risk of malaria (hazard ratio = 4.51, P < 0.001). HEU infants in this study had a 2.4- to 3.5-fold lower incidence of malaria compared to HUU infants in other cohort studies from the same area. Conclusion The burden of malaria in this birth cohort of HEU infants living in a high-transmission setting and taking daily TS prophylaxis was relatively low. Alternative etiologies of fever should be considered in HEU-infants taking daily TS prophylaxis who present with fever. Trial Registration NCT00993031, registered 8 October, 2009
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Affiliation(s)
- Abel Kakuru
- Infectious Diseases Research Collaboration, Kampala, Uganda.
| | - Paul Natureeba
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Mary K Muhindo
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Tamara D Clark
- Department of Medicine, University of California, San Francisco, USA
| | - Diane V Havlir
- Department of Medicine, University of California, San Francisco, USA
| | - Deborah Cohan
- Department of Obstetrics and Gynecology, University of California, San Francisco, USA
| | - Grant Dorsey
- Department of Medicine, University of California, San Francisco, USA
| | - Moses R Kamya
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Theodore Ruel
- Department of Pediatrics, University of California, San Francisco, USA
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Chlamydia trachomatis and Neisseria gonorrhoeae in HIV-infected Pregnant Women and Adverse Infant Outcomes. Pediatr Infect Dis J 2016; 35:894-900. [PMID: 27164464 PMCID: PMC4945428 DOI: 10.1097/inf.0000000000001199] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sexually transmitted infections (STIs) in pregnancy such as Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) may lead to adverse infant outcomes. METHODS Individual urine specimens from HIV-infected pregnant women diagnosed with HIV during labor were collected at the time of infant birth and tested by polymerase chain reaction for CT and NG. Infant HIV infection was determined at 3 months with morbidity/mortality assessed through 6 months. RESULTS Of 1373 maternal urine samples, 277 (20.2%) were positive for CT and/or NG; 249 (18.1%) for CT, 63 (4.6%) for NG and 35 (2.5%) for both CT and NG. HIV infection was diagnosed in 117 (8.5%) infants. Highest rates of adverse outcomes (sepsis, pneumonia, congenital syphilis, septic arthritis, conjunctivitis, low birth weight, preterm delivery and death) were noted in infants of women with CT and NG (23/35, 65.7%) compared with NG (16/28, 57.1%), CT (84/214, 39.3%) and no STI (405/1096, 37%, P = 0.001). Death (11.4% vs. 3%, P = 0.02), low birth weight (42.9% vs. 16.9%, P = 0.001) and preterm delivery (28.6% vs. 10.2%, P = 0.008) were higher among infants of CT and NG-coinfected women. Infants who had any adverse outcome and were born to women with CT and/or NG were 3.5 times more likely to be HIV infected after controlling for maternal syphilis (odds ratio: 3.5, 95% confidence interval: 1.4-8.3). By adjusted multivariate logistic regression, infants born to mothers with any CT and/or NG were 1.35 times more likely to have an adverse outcome (odds ratio, 1.35; 95% confidence interval, 1.03-1.76). CONCLUSIONS STIs in HIV-infected pregnant women are associated with adverse outcomes in HIV-exposed infected and uninfected infants.
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Ásbjörnsdóttir KH, Slyker JA, Maleche-Obimbo E, Wamalwa D, Otieno P, Gichuhi CM, John-Stewart G. Breastfeeding Is Associated with Decreased Risk of Hospitalization among HIV-Exposed, Uninfected Kenyan Infants. J Hum Lact 2016; 32:NP61-6. [PMID: 26423513 PMCID: PMC4814344 DOI: 10.1177/0890334415607854] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 08/26/2015] [Indexed: 01/25/2023]
Abstract
BACKGROUND Human immunodeficiency virus (HIV)-exposed uninfected (HEU) infants are a growing population in sub-Saharan Africa, with higher morbidity and mortality than HIV-unexposed infants. HEU infants may experience increased morbidity due to breastfeeding avoidance. OBJECTIVES We sought to describe the burden and identify predictors of hospitalization among HEU infants in the first year of life. METHODS Using a retrospective cohort of HIV-infected mothers and their HEU infants in Nairobi, Kenya, we identified infants who were HIV-uninfected at birth and were followed monthly until their last negative HIV test, death, loss to follow-up, or study exit at 1 year of age. Incidence, timing, and reason for hospitalization was assessed overall as well as stratified by feeding method. Predictors of first infectious disease hospitalization were identified using competing risk regression, with HIV acquisition and death as competing risks. RESULTS Among 388 infants, 113 hospitalizations were reported (35/100 infant-years [the combined years of observation contributed by all infants in the study]; 95% confidence interval [CI], 29-42). Ninety hospitalizations were due to 1 or more infectious diseases (26/100 infant-years; 95% CI, 21-32)-primarily pneumonia (n = 40), gastroenteritis (n = 17), and sepsis (n = 14). Breastfeeding was associated with decreased risk of infectious disease hospitalization (subhazard ratio = 0.39; 95% CI, 0.24-0.64), as was time-updated nutrition status (subhazard ratio = 0.73; 95% CI, 0.61-0.89). Incidence of infectious disease hospitalization among formula-fed infants was 51/100 infant-years (95% CI, 37-70) compared to 19/100 infant-years (95% CI, 14-25) among breastfed infants. CONCLUSION Among HEU infants, breastfeeding and nutrition status were associated with reduced hospitalization during the first year of life.
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Affiliation(s)
| | - Jennifer A Slyker
- Department of Global Health, University of Washington, Seattle, WA, USA
| | | | - Dalton Wamalwa
- Department of Paediatrics & Child Health, University of Nairobi, Nairobi, Kenya
| | | | - Christine M Gichuhi
- Department of Clinical Medicine and Therapeutics, University of Nairobi, Nairobi, Kenya
| | - Grace John-Stewart
- Department of Epidemiology, University of Washington, Seattle, WA, USA Department of Global Health, University of Washington, Seattle, WA, USA Department of Medicine, University of Washington, Seattle, WA, USA Department of Pediatrics, University of Washington, Seattle, WA, USA
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Sztam KA, Liu E, Manji KP, Kupka R, Kisenge R, Aboud S, Fawzi WW, Bosch RJ, Duggan CP. Maternal Antiretroviral Therapy Is Associated with Lower Risk of Diarrhea in Early Childhood. J Pediatr 2016; 175:54-60. [PMID: 27245295 PMCID: PMC4981520 DOI: 10.1016/j.jpeds.2016.04.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 04/05/2016] [Accepted: 04/26/2016] [Indexed: 11/21/2022]
Abstract
OBJECTIVES To identify risk factors, including maternal antiretroviral therapy (ART), for diarrhea in Tanzanian children exposed to HIV during the first 2 years of life. STUDY DESIGN Using generalized estimating equations, we analyzed data from a cohort of 2387 Tanzanian children exposed to HIV from age 6 weeks to 2 years, as well as data from their mothers, to determine risk factors for diarrhea in children. Mothers recorded diarrhea in a diary and reported results at visits scheduled every four weeks. RESULTS Body mass index was ≥18.5 in 95.6% of mothers. World Health Organization HIV stage was 1/2 for 1255 (87.8%) mothers. ART was received by 24.3% of mothers, most initiating ART during pregnancy. At baseline (6 weeks of age) 264 (11.3%) children were infected with HIV. In children whose mothers received ART, the relative risk of diarrhea in children was 0.79 (95% CI 0.68-0.92), after we adjusted for multiple factors, including child HIV status and exclusive breastfeeding duration. Exclusive breastfeeding (relative risk 0.67, 95% CI 0.56-0.80) also was protective. CONCLUSION Our results provide additional support to increase ART coverage for all pregnant mothers, to control clinical HIV progression, reduce perinatal HIV infection, but also to reduce the risk of a major cause of death and morbidity in young children worldwide. TRIAL REGISTRATION ClinicalTrials.gov: NCT00197730.
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Affiliation(s)
- Kevin A Sztam
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA.
| | - Enju Liu
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA
| | - Karim P Manji
- Department of Pediatrics and Child Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Roland Kupka
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA; Nutrition Section, UNICEF Headquarters, New York, NY
| | - Rodrick Kisenge
- Department of Pediatrics and Child Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Said Aboud
- Department of Microbiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Wafaie W Fawzi
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Ronald J Bosch
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Christopher P Duggan
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
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Coutsoudis A, Daniels B, Moodley-Govender E, Ngomane N, Zako L, Spooner E, Kiepiela P, Reddy S, Kuhn L, Ramjee G. Randomised controlled trial testing the effect of cotrimoxazole prophylaxis on morbidity and mortality outcomes in breastfed HIV-exposed uninfected infants: study protocol. BMJ Open 2016; 6:e010656. [PMID: 27406638 PMCID: PMC4947798 DOI: 10.1136/bmjopen-2015-010656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION No randomised controlled trial (RCT) has examined the efficacy of cotrimoxazole (CTX) prophylaxis in HIV-exposed uninfected (HEU) infants during the breastfeeding period, in this new era of effective prevention of mother-to-child transmission (PMTCT) prophylaxis. The efficacy of CTX prophylaxis has presently been demonstrated only in HIV-infected children. The absence of proven benefits in HEU breastfed infants associated with infectious diseases justifies an RCT as proposed. Herewith lies the rationale for conducting the proposed study. METHODS A partially blinded RCT is proposed to evaluate the efficacy of CTX prophylaxis administered from 6 weeks of age to HEU infants receiving a PMTCT regimen. A non-inferiority design will be used, randomising 1298 infants to receive CTX or not to receive CTX. Participants will be reviewed at the following time points: 6 weeks (enrolment and randomisation), 10 weeks, 14 weeks, 4 months and monthly thereafter until 12 months of age. They will be evaluated for anthropometric growth, interval illness, CTX adherence, signs and symptoms of study drug toxicity, concomitant medication use, breastfeeding status and HIV infection status. The study will compare the incidence of grade 3 and grade 4 common childhood illnesses (focusing on pneumonia and diarrhoea) and all-cause mortality until 12 months of age. In a subset of participants, we will compare grade 3 and grade 4 haemoglobin and alanine aminotransferase results as well as investigate gut integrity. ETHICS AND DISSEMINATION The study has ethical approval from the University of KwaZulu-Natal Biomedical Research Ethics Committee (BFC212/13). TRIAL REGISTRATION NUMBERS PACTR201311000621110 and DOH-27-0614-4728; Pre-results.
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Affiliation(s)
- Anna Coutsoudis
- Department of Paediatrics and Child Health, University of KwaZulu-Natal, Durban, South Africa
| | - Brodie Daniels
- Department of Paediatrics and Child Health, University of KwaZulu-Natal, Durban, South Africa
| | - Eshia Moodley-Govender
- Department of Paediatrics and Child Health, University of KwaZulu-Natal, Durban, South Africa
| | | | - Linda Zako
- eThekwini Health Unit, eThekwini Municipality, Durban, South Africa
| | - Elizabeth Spooner
- Department of Paediatrics and Child Health, University of KwaZulu-Natal, Durban, South Africa
| | - Photini Kiepiela
- HIV Prevention Research Unit, Medical Research Council of South Africa, Durban, South Africa
| | - Shabashini Reddy
- HIV Prevention Research Unit, Medical Research Council of South Africa, Durban, South Africa
| | - Louise Kuhn
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Gita Ramjee
- HIV Prevention Research Unit, Medical Research Council of South Africa, Durban, South Africa
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Arikawa S, Rollins N, Newell M, Becquet R. Mortality risk and associated factors in HIV-exposed, uninfected children. Trop Med Int Health 2016; 21:720-34. [PMID: 27091659 PMCID: PMC5021152 DOI: 10.1111/tmi.12695] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE With increasing maternal antiretroviral treatment (ART), the number of children newly infected with HIV has declined. However, the possible increased mortality in the large number of HIV-exposed, uninfected (HEU) children may be of concern. We quantified mortality risks among HEU children and reviewed associated factors. METHODS Systematic search of electronic databases (PubMed, Scopus). We included all studies reporting mortality of HEU children to age 60 months and associated factors. Relative risk of mortality between HEU and HIV-unexposed, uninfected (HUU) children was extracted where relevant. Inverse variance methods were used to adjust for study size. Random-effects models were fitted to obtain pooled estimates. RESULTS A total of 14 studies were included in the meta-analysis and 13 in the review of associated factors. The pooled cumulative mortality in HEU children was 5.5% (95% CI: 4.0-7.2; I(2) = 94%) at 12 months (11 studies) and 11.0% (95% CI: 7.6-15.0; I(2) = 93%) at 24 months (four studies). The pooled risk ratios for the mortality in HEU children compared to HUU children in the same setting were 1.9 (95% CI: 0.9-3.8; I(2) = 93%) at 12 months (four studies) and 2.4 (95% CI: 1.1-5.1; I(2) = 93%) at 24 months (three studies). CONCLUSION Compared to HUU children, mortality risk in HEU children was about double at both age points, although the association was not statistically significant at 12 months. Interpretation of the pooled estimates is confounded by considerable heterogeneity between studies. Further research is needed to characterise the impact of maternal death and breastfeeding on the survival of HEU infants in the context of maternal ART, where current evidence is limited.
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Affiliation(s)
- Shino Arikawa
- Inserm U1219, Bordeaux Population Health Research CentreBordeaux UniversityBordeauxFrance
| | - Nigel Rollins
- Department of Maternal, Newborn, Child and Adolescent HealthWorld Health OrganizationGenevaSwitzerland
| | - Marie‐Louise Newell
- Human Health and DevelopmentFaculty of MedicineUniversity of SouthamptonSouthamptonUK
| | - Renaud Becquet
- Inserm U1219, Bordeaux Population Health Research CentreBordeaux UniversityBordeauxFrance
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Role of antibiotics in reducing childhood mortality in resource-poor settings. AIDS 2016; 30:1310-1. [PMID: 27128331 DOI: 10.1097/qad.0000000000001044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Babakhanyan A, Ekali GL, Dent A, Kazura J, Nguasong JT, Fodjo BAY, Yuosembom EK, Esemu LF, Taylor DW, Leke RGF. Maternal Human Immunodeficiency Virus-Associated Hypergammaglobulinemia Reduces Transplacental Transfer of Immunoglobulin G to Plasmodium falciparum Antigens in Cameroonian Neonates. Open Forum Infect Dis 2016; 3:ofw092. [PMID: 28487863 PMCID: PMC4943556 DOI: 10.1093/ofid/ofw092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/06/2016] [Indexed: 11/14/2022] Open
Abstract
Background. Human immunodeficiency virus (HIV) infection reduces placental transfer of antibodies from mother to the fetus for many antigens; however, conflicting data exist for transfer of immunoglobulin G (IgG) to malarial antigens. The mechanism(s) underlying reduced placental transfer is unknown. Methods. Levels of maternal and cord total IgG, IgG subclasses, and cord-to-mother ratios (CMRs) were measured in 107 mother-cord pairs to 3 malarial antigens: circumsporozoite protein (CSP), apical membrane antigen 1 (AMA-1), merozoite surface protein 1 (MSP-1), and tetanus toxoid C-fragment (TTc). Results. Immunoglobulin G levels to CSP and TTc were lower in HIV+ mothers, and cord IgG to CSP, MSP-1, and TTc were significantly lower in neonates born to HIV+ mothers (all P values <.05). The prevalence of mothers with hypergammaglobulinemia was significantly higher among HIV+ women (68%) compared with HIV− mothers (8%) (P < .0001). Maternal hypergammaglobulinemia was associated with reduction in transplacental transfer of antibodies to CSP (P = .03), MSP-1 (P = .004), and TTc (P = .012), and CMRs <1 were found for MSP-1 (odds ratio [OR] = 6.5), TTc (OR = 4.95), and IgG1 to CSP (OR = 3.75, P = .025) in statistical models adjusted for maternal IgG. Conclusions. Data confirmed that HIV infections are associated with lower cord antibody levels to malarial antigens and that hypergammaglobulinemia may contribute to reduced antibody transfer.
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Affiliation(s)
- Anna Babakhanyan
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu
| | - Gabriel Loni Ekali
- Biotechnology Center, Faculty of Medicine and Biomedical Research, University of Yaoundé 1, Cameroon
| | - Arlene Dent
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio
| | - James Kazura
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio
| | - John Tamo Nguasong
- Biotechnology Center, Faculty of Medicine and Biomedical Research, University of Yaoundé 1, Cameroon
| | | | - Emile Keming Yuosembom
- Biotechnology Center, Faculty of Medicine and Biomedical Research, University of Yaoundé 1, Cameroon
| | - Livo Forgu Esemu
- Biotechnology Center, Faculty of Medicine and Biomedical Research, University of Yaoundé 1, Cameroon
| | - Diane Wallace Taylor
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, John A. Burns School of Medicine, Honolulu
| | - Rose Gana Fomban Leke
- Biotechnology Center, Faculty of Medicine and Biomedical Research, University of Yaoundé 1, Cameroon
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Slogrove AL, Goetghebuer T, Cotton MF, Singer J, Bettinger JA. Pattern of Infectious Morbidity in HIV-Exposed Uninfected Infants and Children. Front Immunol 2016; 7:164. [PMID: 27199989 PMCID: PMC4858536 DOI: 10.3389/fimmu.2016.00164] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 04/18/2016] [Indexed: 11/13/2022] Open
Abstract
Background Almost 30% of children in Southern Africa are HIV exposed but uninfected (HEU) and experience exposures that could increase vulnerability to infectious diseases compared to HIV unexposed (HU) children. The mechanisms of HEU infant vulnerability remain ill-defined. This review seeks to appraise the existing clinical evidence of the pattern of HEU infant infectious morbidity to aid understanding of the potential mechanism of susceptibility. Methods A systematic search was conducted of scientific literature databases and conference proceedings up to December 2015 for studies comparing adequately defined HEU (in whom HIV-infection had been excluded through age-appropriate testing) and HU infants for all-cause mortality, all-cause hospitalization, or an infection-related morbidity. The systematic review was complemented by a narrative review of additional studies detailing the pattern of infectious morbidity experienced by HEU children without comparison to HU children or without conclusive exclusion of HIV-infection in HIV-exposed infants. Results Only 3 of 22 eligible identified studies were designed to primarily compare HEU and HU infants for infectious morbidity. Fourteen were conducted prior to 2009 in the context of limited antiretroviral interventions. Three patterns emerge: (1) causes of morbidity and mortality in HEU infants are consistent with the common causes of childhood morbidity and mortality (pneumonia, diarrheal disease, and bacterial sepsis) but occur with greater severity in HEU infants resulting in higher mortality, more frequent hospitalization, and more severe manifestations of disease; (2) the greatest relative difference between HEU and HU infants in morbidity and mortality occurs beyond the neonatal period, during mid-infancy, having waned by the second year of life; and (3) HEU infants are at greater risk than HU infants for invasive streptococcal infections specifically Group B Streptococcus and Streptococcus pneumonia. Conclusion To definitively understand HEU infant infectious morbidity risk, substantially larger prospective studies with appropriate HU infant comparison groups are necessary. HEU children would benefit from collaboration among researchers to achieve the quality of evidence required to improve HEU infant outcomes globally. HEU infant health and well-being, beyond avoiding HIV-infection, deserves a more prominent position in the local and international HIV research agendas.
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Affiliation(s)
- Amy L Slogrove
- Division of Paediatric Infectious Diseases, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa; School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Tessa Goetghebuer
- Department of Paediatrics, St Pierre University Hospital, Brussels, Belgium; Université Libre de Bruxelles, Brussels, Belgium
| | - Mark F Cotton
- Division of Paediatric Infectious Diseases, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University , Tygerberg , South Africa
| | - Joel Singer
- School of Population and Public Health, University of British Columbia , Vancouver, BC , Canada
| | - Julie A Bettinger
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Vaccine Evaluation Center, BC Children's Hospital, University of British Columbia , Vancouver, BC , Canada
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Evans C, Jones CE, Prendergast AJ. HIV-exposed, uninfected infants: new global challenges in the era of paediatric HIV elimination. THE LANCET. INFECTIOUS DISEASES 2016; 16:e92-e107. [PMID: 27049574 DOI: 10.1016/s1473-3099(16)00055-4] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 01/01/2016] [Accepted: 01/21/2016] [Indexed: 10/22/2022]
Abstract
The number of infants infected with HIV is declining with the rise in interventions for the elimination of paediatric HIV infection, but the number of uninfected infants exposed to HIV through their HIV-infected mothers is increasing. Interest in the health outcomes of HIV-exposed, uninfected infants has grown in the past decade, with several studies suggesting that these infants have increased mortality rates, increased infectious morbidity, and impaired growth compared with HIV-unexposed infants. However, heterogeneous results might reflect the inherent challenges in studies of HIV-exposed, uninfected infants, which need large populations with appropriate, contemporaneous comparison groups and repeated HIV testing throughout the period of breastfeeding. We review the effects of HIV exposure on mortality, morbidity, and growth, discuss the immunological abnormalities identified so far, and provide an overview of interventions that could be effective in this susceptible population. As the number of infants infected with HIV declines, the health needs of HIV-exposed, uninfected infants should be prioritised further, to ensure that post-2015 Sustainable Development Goals are achieved.
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Affiliation(s)
- Ceri Evans
- Blizard Institute, Queen Mary University of London, London, UK; Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Christine E Jones
- Paediatric Infectious Diseases Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Andrew J Prendergast
- Blizard Institute, Queen Mary University of London, London, UK; Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Kelly MS, Wirth KE, Steenhoff AP, Cunningham CK, Arscott-Mills T, Boiditswe SC, Patel MZ, Shah SS, Finalle R, Makone I, Feemster KA. Treatment Failures and Excess Mortality Among HIV-Exposed, Uninfected Children With Pneumonia. J Pediatric Infect Dis Soc 2015; 4:e117-26. [PMID: 26582879 PMCID: PMC4681380 DOI: 10.1093/jpids/piu092] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 08/26/2014] [Indexed: 11/14/2022]
Abstract
BACKGROUND Human immunodeficiency virus (HIV)-exposed, uninfected (HIV-EU) children are at increased risk of infectious illnesses and mortality compared with children of HIV-negative mothers (HIV-unexposed). However, treatment outcomes for lower respiratory tract infections among HIV-EU children remain poorly defined. METHODS We conducted a hospital-based, prospective cohort study of N = 238 children aged 1-23 months with pneumonia, defined by the World Health Organization. Children were recruited within 6 hours of presentation to a tertiary hospital in Botswana. The primary outcome--treatment failure at 48 hours--was assessed by an investigator blinded to HIV exposure status. RESULTS Median age was 6.0 months; 55% were male. One hundred fifty-three (64%) children were HIV-unexposed, 64 (27%) were HIV-EU, and 20 (8%) were HIV-infected; the HIV exposure status of 1 child could not be established. Treatment failure at 48 hours occurred in 79 (33%) children, including in 36 (24%) HIV-unexposed, 30 (47%) HIV-EU, and 12 (60%) HIV-infected children. In multivariable analyses, HIV-EU children were more likely to fail treatment at 48 hours (risk ratio [RR]: 1.83, 95% confidence interval [CI]: 1.27-2.64, P = .001) and had higher in-hospital mortality (RR: 4.31, 95% CI: 1.44-12.87, P = .01) than HIV-unexposed children. Differences in outcomes by HIV exposure status were observed only among children under 6 months of age. HIV-EU children more frequently received treatment with a third-generation cephalosporin, but this did not reduce the risk of treatment failure in this group. CONCLUSIONS HIV-EU children with pneumonia have higher rates of treatment failure and in-hospital mortality than HIV-unexposed children during the first 6 months of life. Treatment with a third-generation cephalosporins did not improve outcomes among HIV-EU children.
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Affiliation(s)
- Matthew S. Kelly
- Botswana–UPenn Partnership, Gaborone, Botswana
- Divisions of Global Health
- Division of Pediatric Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Kathleen E. Wirth
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Andrew P. Steenhoff
- Botswana–UPenn Partnership, Gaborone, Botswana
- Divisions of Global Health
- Infectious Diseases, The Children's Hospital of Philadelphia, Pennsylvania
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Coleen K. Cunningham
- Division of Pediatric Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Tonya Arscott-Mills
- Botswana–UPenn Partnership, Gaborone, Botswana
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | | | | | - Samir S. Shah
- Divisions of Hospital Medicine and Infectious Diseases, Cincinnati Children's Hospital Medical Center, Ohio
| | - Rodney Finalle
- Divisions of Global Health
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | | | - Kristen A. Feemster
- Divisions of Global Health
- Infectious Diseases, The Children's Hospital of Philadelphia, Pennsylvania
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
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Baroncelli S, Galluzzo CM, Mancinelli S, Andreotti M, Jere H, Amici R, Marazzi MC, Vella S, Palombi L, Giuliano M. Antibodies against pneumococcal capsular polysaccharide in Malawian HIV-positive mothers and their HIV-exposed uninfected children. Infect Dis (Lond) 2015; 48:317-321. [PMID: 26609569 DOI: 10.3109/23744235.2015.1115895] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background HIV-exposed uninfected children have a higher risk of infection and mortality compared to HIV-unexposed children and the reasons for this vulnerability are still under investigation. AIM This study aimed to evaluate the influence of maternal HIV parameters on the passive transfer of anti-pneumococcal capsular polysaccharide (PCP) IgG and to determine whether the concentrations of specific IgG might be related to the morbidity and mortality in HIV-exposed uninfected children. Methods One hundred and twenty-six Malawian HIV-infected pregnant women and their uninfected children were studied. Antiretroviral treatment-naive women started a nevirapine-based triple combination regimen from the third trimester of pregnancy until at least 6 months of exclusive breastfeeding. Mother/child pairs were followed until 2 years after delivery. Plasma anti-PCP IgG titers (in mothers at 26 weeks of gestation and in infants at 1 and 6 months) were determined by an enzyme-linked immunosorbent assay. None of these women and children had received any vaccination against pneumococcal polysaccharides. Results Maternal anti-PCP IgG concentration was independent from viral load (p = 0.848), CD4 count (p = 0.740) and WHO stage (p = 0.450). However, the child/mother ratio of anti-PCP IgG measured at 1 month among infants was significantly reduced in pairs whose mothers had HIV-RNA > 10 000 copies/ml (p = 0.043) and CD4 < 350 cells/μl (p = 0.090) before antiretroviral therapy (ART). No clear associations between anti-PCP IgG and respiratory-related deaths were found, but respiratory infection episodes were more frequent among children with lower anti-PCP IgG ratio (p = 0.046). Conclusion This study indicates that HIV pre-ART conditions in mothers may influence the rate of specific immunoglobulins transfer, increasing infants vulnerability to respiratory infections.
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Affiliation(s)
- Silvia Baroncelli
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
| | - Clementina Maria Galluzzo
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
| | - Sandro Mancinelli
- b Department of Biomedicine and Prevention , University of Rome Tor Vergata , Rome , Italy
| | - Mauro Andreotti
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
| | - Haswell Jere
- c DREAM Program , Community of S. Egidio , Blantyre , Malawi
| | - Roberta Amici
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
| | | | - Stefano Vella
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
| | - Leonardo Palombi
- b Department of Biomedicine and Prevention , University of Rome Tor Vergata , Rome , Italy
| | - Marina Giuliano
- a Department of Therapeutic Research and Medicines Evaluation , Istituto Superiore di Sanità , Rome , Italy
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Thorne C, Idele P, Chamla D, Romano S, Luo C, Newell ML. Morbidity and mortality in HIV-exposed uninfected children. Future Virol 2015. [DOI: 10.2217/fvl.15.70] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Approximately 1.5 million HIV-positive women become pregnant annually. Antiretroviral therapy (ART) is central to prevention of mother-to-child transmission and maternal ART continued postpartum allows breastfeeding for at least 1 year of life, with important benefits for the child. In the pre-ART era, it was suggested that HIV-exposed uninfected (HEU) children may be at higher morbidity and mortality risk than children of HIV-negative mothers, associated with maternal illness and death and the lack, or limited duration, of breastfeeding as recommended for preventing mother-to-child transmission at that time. This review summarizes the evidence on morbidity and mortality risk in HEU children compared with HIV-unexposed children, and assesses the likely impact of roll-out of ART, which prolongs maternal survival and allows breastfeeding.
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Affiliation(s)
- Claire Thorne
- Population, Policy & Practice Programme, UCL Institute of Child Health, University College London, London, WC1E 6BT, UK
| | - Priscilla Idele
- Data & Analytics Section, UNICEF New York, New York, NY, USA
| | - Dick Chamla
- Health Section, UNICEF New York, New York, NY, USA
| | | | - Chewe Luo
- HIV/AIDS Section, UNICEF New York, New York, NY, USA
| | - Marie-Louise Newell
- Faculty of Medicine/Faculty of Social & Human Sciences, University of Southampton, Southampton, SO17 1BJ, UK
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Davis NL, Barnett EJ, Miller WC, Dow A, Chasela CS, Hudgens MG, Kayira D, Tegha G, Ellington SR, Kourtis AP, van der Horst C, Jamieson DJ, Juliano JJ. Impact of daily cotrimoxazole on clinical malaria and asymptomatic parasitemias in HIV-exposed, uninfected infants. Clin Infect Dis 2015; 61:368-74. [PMID: 25900173 DOI: 10.1093/cid/civ309] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 03/25/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Cotrimoxazole preventive therapy (CPT) is recommended for all human immunodeficiency virus (HIV)-exposed infants to avoid opportunistic infections. Cotrimoxazole has antimalarial effects and appears to reduce clinical malaria infections, but the impact on asymptomatic malaria infections is unknown. METHODS We conducted an observational cohort study using data and dried blood spots (DBSs) from the Breastfeeding, Antiretrovirals and Nutrition study to evaluate the impact of CPT on malaria infection during peak malaria season in Lilongwe, Malawi. We compared malaria incidence 1 year before and after CPT implementation (292 and 682 CPT-unexposed and CPT-exposed infants, respectively), including only infants who remained HIV negative by 36 weeks of age. Malaria was defined as clinical, asymptomatic (using DBSs at 12, 24, and 36 weeks), or a composite outcome of clinical or asymptomatic. Linear and binomial regression with generalized estimating equations were used to estimate the association between CPT and malaria. Differences in characteristics of parasitemias and drug resistance polymorphisms by CPT status were also assessed in the asymptomatic infections. RESULTS CPT was associated with a 70% (95% confidence interval, 53%-81%) relative reduction in the risk of asymptomatic infection between 6 and 36 weeks of age. CPT appeared to provide temporary protection against clinical malaria and more sustained protection against asymptomatic infections, with no difference in parasitemia characteristics. CONCLUSIONS CPT appears to reduce overall malaria infections, with more prolonged impacts on asymptomatic infections. Asymptomatic infections are potentially important reservoirs for malaria transmission. Therefore, CPT prophylaxis may have important individual and public health benefits.
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Affiliation(s)
- Nicole L Davis
- Department of Epidemiology, Gillings School of Global Public Health Division of Infectious Diseases, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill
| | - Eric J Barnett
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill
| | - William C Miller
- Department of Epidemiology, Gillings School of Global Public Health Division of Infectious Diseases, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill
| | - Anna Dow
- Department of Epidemiology, Gillings School of Global Public Health
| | - Charles S Chasela
- Division of Epidemiology and Biostatistics, School of Public Health, University of Witwatersrand, Parktown, South Africa
| | - Michael G Hudgens
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill
| | - Dumbani Kayira
- University of North Carolina, UNC Project, Lilongwe, Malawi
| | - Gerald Tegha
- University of North Carolina, UNC Project, Lilongwe, Malawi
| | - Sascha R Ellington
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Athena P Kourtis
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Charles van der Horst
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill
| | - Denise J Jamieson
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jonathan J Juliano
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill
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de Deus N, Moraleda C, Serna-Bolea C, Renom M, Menendez C, Naniche D. Impact of elevated maternal HIV viral load at delivery on T-cell populations in HIV exposed uninfected infants in Mozambique. BMC Infect Dis 2015; 15:37. [PMID: 25645120 PMCID: PMC4320465 DOI: 10.1186/s12879-015-0766-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 01/15/2015] [Indexed: 11/10/2022] Open
Abstract
Background HIV-uninfected infants born to HIV-infected mothers (HIV-exposed uninfected, HEU) have been described to have immune alterations as compared to unexposed infants. This study sought to characterize T-cell populations after birth in HEU infants and unexposed infants living in a semirural area in southern Mozambique. Methods Between August 2008 and June 2009 mother-infant pairs were enrolled at the Manhiça District Hospital at delivery into a prospective observational analysis of immunological and health outcomes in HEU infants. Infants were invited to return at one month of age for a clinical examination, HIV DNA-PCR, and immunophenotypic analyses. The primary analysis sought to assess immunological differences between HEU and unexposed groups, whereas the secondary analysis assessed the impact of maternal HIV RNA viral load in the HEU group. Infants who had a positive HIV DNA-PCR test were not included in the analysis. Results At one month of age, the 74 HEU and the 56 unexposed infants had similar median levels of naïve, memory and activated CD8 and CD4 T-cells. Infant naïve and activated CD8 T-cells were found to be associated with maternal HIV-RNA load at delivery. HEU infants born to women with HIV-RNA loads above 5 log10 copies/mL had lower median levels of naïve CD8 T-cells (p = 0.04), and higher median levels of memory CD8 T-cells, (p = 0.014). Conclusions This study suggests that exposure to elevated maternal HIV-RNA puts the infant at higher risk of having early T-cell abnormalities. Improving prophylaxis of mother to child HIV programs such that more women have undetectable viral load is crucial to decrease vertical transmission of HIV, but may also be important to reduce the consequences of HIV virus exposure in HEU infants.
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Affiliation(s)
- Nilsa de Deus
- National Institute of Health, Maputo, Mozambique. .,Manhiça Health Research Centre (CISM), Manhiça, Mozambique.
| | - Cinta Moraleda
- Manhiça Health Research Centre (CISM), Manhiça, Mozambique. .,Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, C/Rossello 132, 4°, Barcelona, Spain.
| | - Celia Serna-Bolea
- Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, C/Rossello 132, 4°, Barcelona, Spain.
| | - Montse Renom
- Manhiça Health Research Centre (CISM), Manhiça, Mozambique. .,Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, C/Rossello 132, 4°, Barcelona, Spain.
| | - Clara Menendez
- Manhiça Health Research Centre (CISM), Manhiça, Mozambique. .,Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, C/Rossello 132, 4°, Barcelona, Spain.
| | - Denise Naniche
- Manhiça Health Research Centre (CISM), Manhiça, Mozambique. .,Barcelona Centre for International Health Research (CRESIB), Hospital Clinic, Universitat de Barcelona, C/Rossello 132, 4°, Barcelona, Spain.
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Feucht UD, Meyer A, Kruger M. Missing HIV prevention opportunities in South African children--a 7-year review. BMC Public Health 2014; 14:1265. [PMID: 25495201 PMCID: PMC4300827 DOI: 10.1186/1471-2458-14-1265] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 12/03/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The prevention of mother-to-child transmission (PMTCT) program in South Africa is now successful in ensuring HIV-free survival for most HIV-exposed children, but gaps in PMTCT coverage remain. The study objective was to identify missed opportunities for prevention of mother-to-child transmission of HIV using the four PMTCT stages outlined in National Guidelines. METHODS This descriptive study enrolled HIV-exposed children who were below the age of 7 years and therefore born during the South African PMTCT era. The study site was in Gauteng, South Africa and enrolment was from June 2009 to May 2010. The clinical history was obtained through a structured caregiver interview and review of medical records and included socio-demographic data, medical history, HIV interventions, infant feeding information and HIV results. The study group was divided into the "single dose nevirapine" ("sdNVP") and "dual-therapy" (nevirapine & zidovudine) groups due to PMTCT program change in February 2008, with subsequent comparison between the groups regarding PMTCT steps during the preconception stage, antenatal care, labor and delivery and postpartum care. RESULTS Two-hundred-and-one HIV-exposed children were enrolled: 137 (68%) children were HIV infected and 64 (32%) were HIV uninfected. All children were born between 2002 and 2009, with 78 (39%) in the "sdNVP" and 123 (61%) in the "dual-therapy" groups. The results demonstrate significant improvements in antenatal HIV testing and PMTCT enrolment, known maternal HIV diagnosis at delivery, mother-infant antiretroviral interventions, infant HIV-diagnosis and cotrimoxazole prophylaxis. Missed opportunities without improvement include pre-conceptual HIV-services and family planning, tuberculosis screening, HIV disclosure, psychosocial support and postnatal care. Not receiving consistent infant feeding messaging was the only PMTCT component that worsened over time. CONCLUSIONS Multiple missed opportunities for optimal PMTCT were identified, which collectively increase children's risk of HIV acquisition. Although HIV-testing and antiretroviral interventions improved, all PMTCT components need to be optimized to reach the goal of total pediatric HIV elimination.
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Affiliation(s)
- Ute D Feucht
- Department of Paediatrics, University of Pretoria, Pretoria, South Africa.
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Marquez C, Okiring J, Chamie G, Ruel TD, Achan J, Kakuru A, Kamya MR, Charlebois ED, Havlir DV, Dorsey G. Increased morbidity in early childhood among HIV-exposed uninfected children in Uganda is associated with breastfeeding duration. J Trop Pediatr 2014; 60:434-41. [PMID: 25145704 PMCID: PMC4303769 DOI: 10.1093/tropej/fmu045] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Human immunodeficiency virus (HIV)-exposed uninfected children (HEU) have an increased risk of morbidity and mortality compared with HIV-unexposed uninfected children (HUU); however, prior studies have not fully accounted for the role of both breastfeeding and age on this association. In this cohort of HEU and HUU in Uganda, non-breastfeeding HEU, from 6-11 months compared with non-breastfeeding HUU had a higher risk of hospitalizations [relative risk (RR): 10.1, 95% confidence interval (CI): 3.70-27.6], severe febrile illness (RR: 3.84, 95% CI: 2.06-7.17), severe diarrhea (RR: 6.37, 95% CI: 2.32-17.4) and severe malnutrition (RR: 18.4, 95% CI: 4.68-72.0). There were no differences between morbidity outcomes between breastfeeding HEU and HUU children, aged 6-11 months. In the 12-24 month age group, the only difference in morbidity outcomes among non-breast feeding children was an increased risk of severe malnutrition for HEU. These data suggest that the increased risk of morbidity among HEU aged 6-11 years is partially explained by early cessation of breastfeeding.
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Affiliation(s)
- Carina Marquez
- Division of HIV/AIDS, San Francisco General Hospital, University of California, San Francisco, CA 94110, USA
| | - Jaffer Okiring
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Gabriel Chamie
- Division of HIV/AIDS, San Francisco General Hospital, University of California, San Francisco, CA 94110, USA
| | - Theodore D. Ruel
- Division of Infectious Diseases, Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| | - Jane Achan
- Department of Pediatrics, Makerere University College of Health Sciences, Kampala, Uganda
| | - Abel Kakuru
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Moses R. Kamya
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Edwin D. Charlebois
- Center for AIDS Prevention, University of California, San Francisco, CA 94105, USA
| | - Diane V. Havlir
- Division of HIV/AIDS, San Francisco General Hospital, University of California, San Francisco, CA 94110, USA
| | - Grant Dorsey
- Division of Infectious Diseases, Department of Medicine, San Francisco General Hospital, University of California, San Francisco, CA, USA
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Efficacy and safety of three regimens for the prevention of malaria in young HIV-exposed Ugandan children: a randomized controlled trial. AIDS 2014; 28:2701-9. [PMID: 25493596 DOI: 10.1097/qad.0000000000000497] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Trimethoprim-sulfamethoxazole prophylaxis is recommended for HIV-exposed infants until breastfeeding ends and HIV infection has been excluded. Extending prophylaxis with a focus on preventing malaria may be beneficial in high transmission areas. We investigated three regimens for the prevention of malaria in young HIV-exposed children. DESIGN An open-label, randomized controlled trial. SETTING Tororo, Uganda, a rural area with intense, year-round, malaria transmission. PARTICIPANTS Two hundred infants aged 4-5 months enrolled and 186 randomized after cessation of breastfeeding and confirmed to be HIV uninfected (median 10 months of age). INTERVENTION No chemoprevention, monthly sulfadoxine-pyrimethamine, daily trimethoprim-sulfamethoxazole or monthly dihydroartemisinin-piperaquine given from randomization to 24 months of age. MAIN OUTCOME MEASURES The primary outcome was the incidence of malaria during the intervention period. Secondary outcomes included the incidence of hospitalization, diarrhoeal illness, or respiratory tract infection; prevalence of anaemia and asymptomatic parasitemia; measures of safety; and incidence of malaria over 1 year after the intervention was stopped. RESULTS During the intervention, the incidence of malaria in the no chemoprevention group was 6.28 episodes per person-year at risk. Protective efficacy was 69% [95% confidence interval (95% CI) 53-80, P < 0.001] for dihydroartemisinin-piperaquine, 49% (95% CI 23-66, P = 0.001) for trimethoprim-sulfamethoxazole and 9% for sulfadoxine-pyrimethamine (95% CI -35 to 38, P = 0.65). There were no significant differences in any secondary outcomes, with the exception of a lower prevalence of asymptomatic parasitemia in the dihydroartemisinin-piperaquine arm. CONCLUSION Monthly chemoprevention with dihydroartemisinin-piperaquine was well tolerated and associated with a significant reduction in malaria in young HIV-exposed children.
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Abstract
There is a growing evidence base on the immediate and short-term effects of adult HIV on children. We provide an overview of this literature, highlighting the multiple risks and resultant negative consequences stemming from adult HIV infection on the children they care for on an individual and family basis. We trace these consequences from their origin in the health and wellbeing of adults on whom children depend, through multiple pathways to negative impacts for children. As effective treatment reduces vertical transmission, the needs of affected children will predominate. Pathways include exposure to HIV in utero, poor caregiver mental or physical health, the impact of illness, stigma and increased poverty. We summarize the evidence of negative consequences, including those affecting health, cognitive development, education, child mental health, exposure to abuse and adolescent risk behaviour, including sexual risk behaviour, which has obvious implications for HIV-prevention efforts. We also highlight the evidence of positive outcomes, despite adversity, considering the importance of recognizing and supporting the development of resilience. This study is the first in a series of three commissioned by President's Emergency Plan for AIDS Relief (PEPFAR)/United States Agency for International Development (USAID), the summary provided here was used to inform a second study which seeks to identify insights from the broader child development field which will help us predict what long-term negative consequences children affected by HIV and AIDS are likely to experience. The third study discusses the design of a model to estimate these consequences. Although comprehensive, the review is often hampered by poor-quality research, inadequate design, small sample sizes and single studies in some areas.
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50
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Reikie BA, Adams RC, Leligdowicz A, Ho K, Naidoo S, Rusk CE, de Beer C, Preiser W, Cotton MF, Speert DP, Esser M, Kollmann TR. Altered innate immune development in HIV-exposed uninfected infants. J Acquir Immune Defic Syndr 2014; 66:245-255. [PMID: 24732876 PMCID: PMC4146715 DOI: 10.1097/qai.0000000000000161] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Early in life, HIV-exposed uninfected (HEU) infants are at an increased risk of morbidity and mortality from infectious disease compared with HIV-unexposed (UE) infants. To improve our understanding of the mechanisms underlying their increased risk, we contrasted innate immune development between HEU and UE infants in a developing world setting, where early life infectious disease risk is exceptionally high. METHODS A prospective longitudinal cohort of HEU and UE newborns was established, and the most detailed characterization to date of HEU infant immune development was performed. Single-cell cytokine production was analyzed by flow cytometry after stimulation of whole blood with pathogen-associated molecular patterns (PAMPs). RESULTS Monocyte, classical dendritic cell, and plasmacytoid dendritic cell composition was similar between HEU and UE infants throughout the first year of life. However, HEU mononuclear cells mounted an enhanced pro-inflammatory response to PAMP stimulation, both in quantity of cytokine produced per cell and in proportion of responder cells. Significant differences in cytokine production were detected on the single-cell level in a PAMP-specific pattern, but only at 2 and 6 weeks of age; all differences normalized by 12 months of age. CONCLUSIONS This time course of innate immune deviation early in life corresponds to the clinical window of vulnerability to infections in HEU infants and may be at least partially responsible for their increased morbidity and mortality from infectious disease.
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Affiliation(s)
- Brian A. Reikie
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
- Leaders in Medicine Program, University of Calgary, Calgary, T2N 4N1, Canada
| | - Rozanne C.M. Adams
- Immunology Unit, Division of Medical Microbiology, Department of Pathology, NHLS and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - Aleksandra Leligdowicz
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
| | - Kevin Ho
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
| | - Shalena Naidoo
- Immunology Unit, Division of Medical Microbiology, Department of Pathology, NHLS and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - Candice E. Rusk
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
| | - Corena de Beer
- Division of Medical Virology, Department of Pathology, NHLS and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - Wolfgang Preiser
- Division of Medical Virology, Department of Pathology, NHLS and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - Mark F. Cotton
- Department of Paediatrics and Child Health, Tygerberg Children's Hospital and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - David P. Speert
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
| | - Monika Esser
- Immunology Unit, Division of Medical Microbiology, Department of Pathology, NHLS and Stellenbosch University, PO 19063, Tygerberg 7505 South Africa
| | - Tobias R. Kollmann
- Division of Infectious & Immunological Diseases, and Centre for Understanding and Preventing Infections in Children, Department of Pediatrics, University of British Columbia, Vancouver, V5Z 4H4, Canada
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